| areflexia | (noun) absence of a reflex; a sign of possible nerve damage | - |
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| baffle | (noun) a flat plate that controls or directs the flow of fluid or energy | Synonyms: baffle board |
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| (verb) restrain the emission of (sound, fluid, etc.) | Synonyms: regulate |
| (verb) be a mystery or bewildering to | Synonyms: amaze, beat, bewilder, dumbfound, flummox, get, gravel, mystify, nonplus, perplex, pose, puzzle, stick, stupefy, vex |
| (verb) hinder or prevent (the efforts, plans, or desires) of | Synonyms: bilk, cross, foil, frustrate, queer, scotch, spoil, thwart |
| baffled | (adjective) perplexed by many conflicting situations or statements; filled with bewilderment | Synonyms: at sea, befuddled, bemused, bewildered, confounded, confused, lost, mazed, mixed-up |
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| (noun) people who are frustrated and perplexed | - |
| bafflement | (noun) confusion resulting from failure to understand | Synonyms: befuddlement, bemusement, bewilderment, mystification, obfuscation, puzzlement |
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| briefless | (adjective) (of lawyers or barristers) lacking clients | - |
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| bufflehead | (noun) small North American diving duck; males have bushy head plumage | Synonyms: Bucephela albeola, butterball, dipper |
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| circumflex | (noun) a diacritical mark (^) placed above a vowel in some languages to indicate a special phonetic quality | - |
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| deflect | (verb) impede the movement of (an opponent or a ball) | Synonyms: block, parry |
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| (verb) draw someone's attention away from something | Synonyms: distract |
| (verb) turn aside and away from an initial or intended course | - |
| (verb) turn from a straight course, fixed direction, or line of interest | Synonyms: bend, turn away |
| (verb) prevent the occurrence of; prevent from happening; to protect from or to keep away anything undesirable; to ward off | Synonyms: avert, avoid, debar, fend off, forefend, forfend, head off, obviate, stave off, ward off |
| deflection | (noun) a turning aside (of your course or attention or concern) | Synonyms: deflexion, deviation, digression, divagation, diversion |
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| (noun) the property of being bent or deflected | Synonyms: bending, deflexion |
| (noun) the amount by which a propagating wave is bent | Synonyms: deflexion, refraction |
| (noun) the movement of the pointer or pen of a measuring instrument from its zero position | Synonyms: deflexion |
| (noun) a twist or aberration; especially a perverse or abnormal way of judging or acting | Synonyms: warp |
| deflective | (adjective) capable of changing the direction (of a light or sound wave) | Synonyms: refractive |
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| deflector | (noun) a device intended to turn aside the flow of something (water or air or smoke etc) | - |
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| deflexion | (noun) a turning aside (of your course or attention or concern) | Synonyms: deflection, deviation, digression, divagation, diversion |
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| (noun) the property of being bent or deflected | Synonyms: bending, deflection |
| (noun) the amount by which a propagating wave is bent | Synonyms: deflection, refraction |
| (noun) the movement of the pointer or pen of a measuring instrument from its zero position | Synonyms: deflection |
| dorsiflexion | (noun) the act of bending backward (of the body or a body part) | - |
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| duffle | (noun) a coarse heavy woolen fabric | Synonyms: duffel |
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| (noun) a large cylindrical bag of heavy cloth; for carrying personal belongings | Synonyms: duffel, duffel bag, duffle bag |
| effleurage | (noun) a rhythmic stroking | - |
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| flea | (noun) any wingless bloodsucking parasitic insect noted for ability to leap | - |
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| fleabag | (noun) a run-down hotel | - |
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| fleabane | (noun) hairy perennial Eurasian herb with yellow daisylike flowers reputed to destroy or drive away fleas | Synonyms: feabane mullet, Pulicaria dysenterica |
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| (noun) any of several North American plants of the genus Erigeron having daisylike flowers; formerly believed to repel fleas | - |
| (noun) common North American weed with linear leaves and small discoid heads of yellowish flowers; widely naturalized throughout temperate regions; sometimes placed in genus Erigeron | Synonyms: Canadian fleabane, Conyza canadensis, Erigeron canadensis, horseweed |
| fleapit | (noun) an old shabby movie theater | - |
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| fleawort | (noun) plantain of Mediterranean regions whose seeds swell and become gelatinous when moist and are used as a mild laxative | Synonyms: Plantago psyllium, psyllium, Spanish psyllium |
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| flecainide | (noun) oral antiarrhythmic medication (trade name Tambocor) used as a last resort in treating arrhythmias; increases the risk of sudden death in heart attack patients | Synonyms: Tambocor |
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| fleck | (noun) a small contrasting part of something | Synonyms: dapple, maculation, patch, speckle, spot |
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| (noun) a small fragment of something broken off from the whole | Synonyms: bit, chip, flake, scrap |
| (verb) make a spot or mark onto | Synonyms: blob, blot, spot |
| flecked | (adjective) having a pattern of dots | Synonyms: dotted, specked, speckled, stippled |
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| flection | (noun) deviation from a straight or normal course | Synonyms: flexion, inflection |
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| (noun) the state of being flexed (as of a joint) | Synonyms: flexion, flexure |
| fledge | (verb) grow feathers | Synonyms: feather |
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| (verb) decorate with feathers | Synonyms: flight |
| (verb) feed, care for, and rear young birds for flight | - |
| fledged | (adjective) (of birds) having developed feathers or plumage; often used in combination | Synonyms: mature |
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| (adjective) (of an arrow) equipped with feathers | Synonyms: vaned |
| fledgeless | (adjective) (of an arrow) not equipped with feathers | Synonyms: unfledged, unvaned |
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| fledgeling | (adjective) (of a young bird) having acquired its flight feathers | Synonyms: fledgling |
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| (noun) young bird that has just fledged or become capable of flying | Synonyms: fledgling |
| (noun) any new participant in some activity | Synonyms: entrant, fledgling, freshman, neophyte, newbie, newcomer, starter |
| fledgling | (adjective) (of a young bird) having acquired its flight feathers | Synonyms: fledgeling |
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| (adjective) young and inexperienced | Synonyms: callow, unfledged |
| (noun) young bird that has just fledged or become capable of flying | Synonyms: fledgeling |
| (noun) any new participant in some activity | Synonyms: entrant, fledgeling, freshman, neophyte, newbie, newcomer, starter |
| flee | (verb) run away quickly | Synonyms: fly, take flight |
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| fleece | (noun) outer coat of especially sheep and yaks | Synonyms: wool |
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| (noun) a soft bulky fabric with deep pile; used chiefly for clothing | - |
| (noun) the wool of a sheep or similar animal | - |
| (noun) tanned skin of a sheep with the fleece left on; used for clothing | Synonyms: sheepskin |
| (verb) shear the wool from | Synonyms: shear |
| (verb) rip off; ask an unreasonable price | Synonyms: gazump, hook, overcharge, pluck, plume, rob, soak, surcharge |
| fleeceable | (adjective) naive and easily deceived or tricked | Synonyms: green, gullible |
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| fleecy | (adjective) (of fabrics) having soft nap produced by brushing | Synonyms: brushed, napped |
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| fleer | (noun) someone who flees from an uncongenial situation | Synonyms: fugitive, runaway |
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| (noun) contempt expressed by mockery in looks or words | - |
| (verb) to smirk contemptuously | - |
| fleet | (adjective) moving very fast | Synonyms: swift |
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| (noun) a group of warships organized as a tactical unit | - |
| (noun) a group of steamships operating together under the same ownership | - |
| (noun) group of motor vehicles operating together under the same ownership | - |
| (noun) group of aircraft operating together under the same ownership | - |
| (verb) disappear gradually | Synonyms: blow over, evanesce, fade, pass, pass off |
| (verb) move along rapidly and lightly; skim or dart | Synonyms: dart, flit, flutter |
| fleeting | (adjective) lasting for a markedly brief time | Synonyms: fugitive, momentaneous, momentary |
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| fleetingness | (noun) the property of lasting for a very short time | Synonyms: ephemerality, ephemeralness |
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| fleetly | (adverb) in a swift manner | Synonyms: swiftly |
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| fleetness | (noun) rapidity of movement | - |
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| flense | (verb) strip the blubber or skin from (a whale or seal) | - |
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| flerovium | (noun) a radioactive transuranic element | Synonyms: Fl |
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| flesh | (noun) alternative names for the body of a human being | Synonyms: anatomy, bod, build, chassis, figure, form, frame, human body, material body, physical body, physique, shape, soma |
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| (noun) the soft tissue of the body of a vertebrate: mainly muscle tissue and fat | - |
| (noun) a soft moist part of a fruit | Synonyms: pulp |
| (verb) remove adhering flesh from (hides) when preparing leather manufacture | - |
| fleshiness | (noun) more than average fatness | Synonyms: corpulency, obesity |
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| fleshly | (adjective) marked by the appetites and passions of the body | Synonyms: animal, carnal, sensual |
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| fleshy | (adjective) of or relating to or resembling flesh | Synonyms: sarcoid |
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| (adjective) usually describes a large person who is fat but has a large frame to carry it | Synonyms: heavy, overweight |
| flews | (noun) The fleshy hanging upper lip of a bloodhound or similar dog. | - |
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| flex | (noun) the act of flexing | - |
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| (verb) cause (an object) to assume a crooked or angular form | Synonyms: bend, deform, turn, twist |
| (verb) bend a joint | Synonyms: bend |
| (verb) form a curve | Synonyms: bend |
| (verb) contract | - |
| (verb) exhibit the strength of | - |
| flexibility | (noun) the quality of being adaptable or variable | Synonyms: flexibleness |
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| (noun) the property of being flexible; easily bent or shaped | Synonyms: flexibleness |
| (noun) the trait of being easily persuaded | Synonyms: tractability, tractableness |
| flexible | (adjective) able to flex; able to bend easily | Synonyms: flexile |
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| (adjective) capable of being changed | - |
| (adjective) making or willing to make concessions | Synonyms: compromising, conciliatory |
| (adjective) able to adjust readily to different conditions | Synonyms: elastic, pliable, pliant |
| (adjective) bending and snapping back readily without breaking | Synonyms: whippy |
| flexibleness | (noun) the property of being flexible; easily bent or shaped | Synonyms: flexibility |
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| (noun) the quality of being adaptable or variable | Synonyms: flexibility |
| flexibly | (adverb) with flexibility | - |
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| flexile | (adjective) able to flex; able to bend easily | Synonyms: flexible |
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| flexion | (noun) act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased | Synonyms: flexure |
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| (noun) deviation from a straight or normal course | Synonyms: flection, inflection |
| (noun) the state of being flexed (as of a joint) | Synonyms: flection, flexure |
| flexitarianism | (noun) The practice of eating mainly vegetarian food, but making occasional exceptions for social, pragmatic, cultural, or nutritional reasons. | Synonyms: semi-vegetarianism |
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| flexor | (noun) a skeletal muscle whose contraction bends a joint | Synonyms: flexor muscle |
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| flexuous | (adjective) having turns or windings | - |
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| flexure | (noun) act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased | Synonyms: flexion |
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| (noun) an angular or rounded shape made by folding | Synonyms: bend, crease, crimp, fold, plication |
| (noun) the state of being flexed (as of a joint) | Synonyms: flection, flexion |
| genuflect | (verb) bend the knees and bow in church or before a religious superior or image | - |
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| (verb) bend the knees and bow in a servile manner | Synonyms: kowtow, scrape |
| genuflection | (noun) the act of bending the knees in worship or reverence | Synonyms: genuflexion |
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| genuflexion | (noun) the act of bending the knees in worship or reverence | Synonyms: genuflection |
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| gooseflesh | (noun) reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation | Synonyms: goose bump, goose pimple, goose skin, goosebump, horripilation, pilomotor reflex |
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| horseflesh | (noun) the flesh of horses as food | Synonyms: horsemeat |
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| inflect | (verb) vary the pitch of one's speech | Synonyms: modulate, tone |
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| (verb) change the form of a word in accordance as required by the grammatical rules of the language | - |
| inflected | (adjective) (of the voice) altered in tone or pitch | - |
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| (adjective) showing alteration in form (especially by the addition of affixes) | - |
| inflection | (noun) the patterns of stress and intonation in a language | Synonyms: prosody |
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| (noun) a manner of speaking in which the loudness or pitch or tone of the voice is modified | Synonyms: modulation |
| (noun) deviation from a straight or normal course | Synonyms: flection, flexion |
| (noun) a change in the form of a word (usually by adding a suffix) to indicate a change in its grammatical function | Synonyms: inflexion |
| inflectional | (adjective) characterized by inflections indicating grammatical distinctions | - |
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| inflexibility | (noun) the quality of being rigid and rigorously severe | Synonyms: rigidity, rigidness |
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| (noun) a lack of physical flexibility | Synonyms: inflexibleness |
| inflexible | (adjective) resistant to being bent | - |
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| (adjective) incapable of change | - |
| (adjective) not making concessions | Synonyms: sturdy, uncompromising |
| (adjective) incapable of adapting or changing to meet circumstances | Synonyms: rigid, unbending |
| inflexibleness | (noun) a lack of physical flexibility | Synonyms: inflexibility |
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| inflexibly | (adverb) in an inflexible manner | - |
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| inflexion | (noun) a change in the form of a word (usually by adding a suffix) to indicate a change in its grammatical function | Synonyms: inflection |
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| interreflection | (noun) reciprocal reflection between two reflecting surfaces | - |
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| kerfuffle | (noun) a disorderly outburst or tumult | Synonyms: commotion, disruption, disturbance, flutter, hoo-ha, hoo-hah, hurly burly, to-do |
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| leafless | (adjective) having no leaves | - |
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| leaflet | (noun) a thin triangular flap of a heart valve | Synonyms: cusp |
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| (noun) a small book usually having a paper cover | Synonyms: booklet, brochure, folder, pamphlet |
| (noun) part of a compound leaf | - |
| muffle | (noun) a kiln with an inner chamber for firing things at a low temperature | - |
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| (verb) suppress in order to conceal or hide | Synonyms: repress, smother, stifle, strangle |
| (verb) deaden (a sound or noise), especially by wrapping | Synonyms: damp, dampen, dull, mute, tone down |
| muffled | (adjective) wrapped up especially for protection or secrecy | - |
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| (adjective) being or made softer or less loud or clear | Synonyms: dull, muted, softened |
| muffler | (noun) a scarf worn around the neck | - |
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| (noun) a tubular acoustic device inserted in the exhaust system that is designed to reduce noise | Synonyms: silencer |
| (noun) a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations | Synonyms: damper |
| nonreflecting | (adjective) not capable of physical reflection | Synonyms: nonreflective |
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| nonreflective | (adjective) not capable of physical reflection | Synonyms: nonreflecting |
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| piffle | (noun) trivial nonsense | Synonyms: balderdash, fiddle-faddle |
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| (verb) act in a trivial or ineffective way | - |
| (verb) speak (about unimportant matters) rapidly and incessantly | Synonyms: blab, blabber, chatter, clack, gabble, gibber, maunder, palaver, prate, prattle, tattle, tittle-tattle, twaddle |
| raffle | (noun) a lottery in which the prizes are goods rather than money | - |
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| (verb) dispose of in a lottery | Synonyms: raffle off |
| reflect | (verb) reflect deeply on a subject | Synonyms: chew over, contemplate, excogitate, meditate, mull, mull over, muse, ponder, ruminate, speculate, think over |
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| (verb) give evidence of the quality of | - |
| (verb) give evidence of a certain behavior | - |
| (verb) to throw or bend back (from a surface) | Synonyms: reverberate |
| (verb) manifest or bring back | - |
| (verb) show an image of | - |
| (verb) be bright by reflecting or casting light | Synonyms: shine |
| reflectance | (noun) the fraction of radiant energy that is reflected from a surface | Synonyms: coefficient of reflection, reflection factor, reflectivity |
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| reflected | (adjective) (especially of incident sound or light) bent or sent back | - |
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| reflecting | (adjective) causing reflection or having a device that reflects | - |
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| reflection | (noun) the image of something as reflected by a mirror (or other reflective material) | Synonyms: reflexion |
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| (noun) the ability to reflect beams or rays | Synonyms: reflectivity, reflexion |
| (noun) a likeness in which left and right are reversed | Synonyms: mirror image, reflexion |
| (noun) a calm, lengthy, intent consideration | Synonyms: contemplation, musing, reflexion, rumination, thoughtfulness |
| (noun) a remark expressing careful consideration | Synonyms: observation, reflexion |
| (noun) expression without words | Synonyms: expression, manifestation, reflexion |
| (noun) the phenomenon of a propagating wave (light or sound) being thrown back from a surface | Synonyms: reflexion |
| (noun) (mathematics) a transformation in which the direction of one axis is reversed | - |
| reflective | (adjective) capable of physically reflecting light or sound | - |
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| (adjective) devoted to matters of the mind | - |
| (adjective) deeply or seriously thoughtful | Synonyms: brooding, broody, contemplative, meditative, musing, pensive, pondering, ruminative |
| reflectively | (adverb) in a reflective manner | - |
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| reflectiveness | (noun) the capability of quiet thought or contemplation | Synonyms: reflectivity |
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| reflectivity | (noun) the ability to reflect beams or rays | Synonyms: reflection, reflexion |
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| (noun) the capability of quiet thought or contemplation | Synonyms: reflectiveness |
| (noun) the fraction of radiant energy that is reflected from a surface | Synonyms: coefficient of reflection, reflectance, reflection factor |
| reflectometer | (noun) a meter that measures the reflectance of a surface | - |
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| reflector | (noun) device that reflects radiation | - |
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| (noun) optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece | Synonyms: reflecting telescope |
| reflectorise | (verb) provide with reflectors, such as chemicals | Synonyms: reflectorize |
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| reflectorize | (verb) provide with reflectors, such as chemicals | Synonyms: reflectorise |
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| reflex | (adjective) without volition or conscious control | Synonyms: automatic, reflexive |
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| (noun) an automatic instinctive unlearned reaction to a stimulus | Synonyms: inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex action, reflex response, unconditioned reflex |
| reflexed | (adjective) (of leaves) bent downward and outward more than 90 degrees | - |
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| reflexion | (noun) the image of something as reflected by a mirror (or other reflective material) | Synonyms: reflection |
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| (noun) the ability to reflect beams or rays | Synonyms: reflection, reflectivity |
| (noun) a likeness in which left and right are reversed | Synonyms: mirror image, reflection |
| (noun) a calm, lengthy, intent consideration | Synonyms: contemplation, musing, reflection, rumination, thoughtfulness |
| (noun) a remark expressing careful consideration | Synonyms: observation, reflection |
| (noun) expression without words | Synonyms: expression, manifestation, reflection |
| (noun) the phenomenon of a propagating wave (light or sound) being thrown back from a surface | Synonyms: reflection |
| reflexive | (adjective) referring back to itself | Synonyms: self-referent |
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| (adjective) without volition or conscious control | Synonyms: automatic, reflex |
| (noun) a personal pronoun compounded with -self to show the agent's action affects the agent | Synonyms: reflexive pronoun |
| reflexively | (adverb) in a reflexive manner; by means of reflexes | Synonyms: reflexly |
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