| ninefold | (adjective) having nine units or components | Synonyms: nine-fold, nonuple |
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| (adverb) by a factor of nine | Synonyms: nine times |
| nitrochloroform | (noun) a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas | Synonyms: chloropicrin |
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| nonconformance | (noun) failure to conform to accepted standards of behavior | Synonyms: nonconformity |
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| (noun) a lack of orthodoxy in thoughts or beliefs | Synonyms: nonconformism, nonconformity |
| nonconforming | (adjective) not conforming to established customs or doctrines especially in religion | Synonyms: nonconformist |
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| nonconformism | (noun) the practice of nonconformity | - |
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| (noun) a lack of orthodoxy in thoughts or beliefs | Synonyms: nonconformance, nonconformity |
| nonconformist | (adjective) not conforming to some norm or socially approved pattern of behavior or thought | Synonyms: unconformist |
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| (adjective) not conforming to established customs or doctrines especially in religion | Synonyms: nonconforming |
| (noun) someone who refuses to conform to established standards of conduct | Synonyms: recusant |
| nonconformity | (noun) failure to conform to accepted standards of behavior | Synonyms: nonconformance |
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| (noun) unorthodoxy as a consequence of not conforming to expected standards or values | - |
| (noun) a lack of orthodoxy in thoughts or beliefs | Synonyms: nonconformance, nonconformism |
| (noun) lack of harmony or correspondence | - |
| nonperformance | (noun) failure to act with the prudence that a reasonable person would exercise under the same circumstances | Synonyms: carelessness, neglect, negligence |
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| nonuniform | (adjective) not homogeneous | Synonyms: inhomogeneous |
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| nonuniformity | (noun) the quality of being diverse and interesting | - |
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| outfox | (verb) outdo someone in trickery | - |
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| (verb) beat through cleverness and wit | Synonyms: beat, circumvent, outsmart, outwit, overreach |
| outperform | (verb) be or do something to a greater degree | Synonyms: exceed, outdo, outgo, outmatch, outstrip, surmount, surpass |
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| overfond | (adjective) excessively fond | - |
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| oviform | (adjective) rounded like an egg | Synonyms: egg-shaped, elliptic, elliptical, oval-shaped, oval, ovate, ovoid, prolate |
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| oxford | (noun) a low shoe laced over the instep | - |
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| panduriform | (adjective) (of a leaf shape) having rounded ends and a contracted center | Synonyms: fiddle-shaped, pandurate |
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| papilliform | (adjective) shaped like a papilla | - |
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| parafovea | (noun) area of the retina immediately surrounding the fovea | - |
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| patelliform | (adjective) shaped like a dish or pan | Synonyms: dish-shaped, dished |
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| peafowl | (noun) very large terrestrial southeast Asian pheasant often raised as an ornamental bird | Synonyms: bird of Juno |
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| perfoliate | (adjective) (of a leaf) having the base united around (and apparently pierced by) the stem | - |
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| perforate | (adjective) having a hole cut through | Synonyms: perforated, pierced, punctured |
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| (verb) make a hole into or between, as for ease of separation | Synonyms: punch |
| (verb) pass into or through, often by overcoming resistance | Synonyms: penetrate |
| perforated | (adjective) having a number or series of holes | - |
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| (adjective) having a hole cut through | Synonyms: perforate, pierced, punctured |
| perforation | (noun) the act of punching a hole (especially a row of holes as for ease of separation) | - |
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| (noun) a line of small holes for tearing at a particular place | - |
| (noun) a hole made in something | - |
| perforce | (adverb) by necessity; by force of circumstance | - |
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| perform | (verb) carry out or perform an action | Synonyms: do, execute |
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| (verb) give a performance (of something) | - |
| (verb) get (something) done | Synonyms: do |
| (verb) perform a function | - |
| performance | (noun) the act of performing; of doing something successfully; using knowledge as distinguished from merely possessing it | Synonyms: carrying into action, carrying out, execution |
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| (noun) the act of presenting a play or a piece of music or other entertainment | - |
| (noun) any recognized accomplishment | - |
| (noun) a dramatic or musical entertainment | Synonyms: public presentation |
| (noun) process or manner of functioning or operating | Synonyms: functioning, operation |
| performer | (noun) an entertainer who performs a dramatic or musical work for an audience | Synonyms: performing artist |
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| performing | (noun) the performance of a part or role in a drama | Synonyms: acting, playacting, playing |
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| petfood | (noun) food prepared for animal pets | Synonyms: pet-food, pet food |
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| pettifog | (verb) argue over petty things | Synonyms: bicker, brabble, niggle, quibble, squabble |
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| pettifogger | (noun) a person (especially a lawyer or politician) who uses unscrupulous or unethical methods | Synonyms: shyster |
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| (noun) a disputant who quibbles; someone who raises annoying petty objections | Synonyms: caviler, caviller, quibbler |
| pettifoggery | (noun) a quarrel about petty points | Synonyms: bicker, bickering, fuss, spat, squabble, tiff |
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| phylliform | (adjective) having the shape of a leaf | - |
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| pianoforte | (noun) a keyboard instrument that is played by depressing keys that cause hammers to strike tuned strings and produce sounds | Synonyms: forte-piano, piano |
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| pinafore | (noun) a sleeveless dress resembling an apron; worn over other clothing | Synonyms: jumper, pinny |
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| pinfold | (noun) a pen where stray animals are confined | - |
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| pisiform | (noun) a small wrist bone that articulates only with the triquetral | Synonyms: os pisiforme, pisiform bone |
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| pitchfork | (noun) a long-handled hand tool with sharp widely spaced prongs for lifting and pitching hay | - |
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| (verb) lift with a pitchfork | Synonyms: fork |
| platform | (noun) a raised horizontal surface | - |
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| (noun) any military structure or vehicle bearing weapons | Synonyms: weapons platform |
| (noun) a woman's shoe with a very high thick sole | Synonyms: chopine |
| (noun) the combination of a particular computer and a particular operating system | - |
| (noun) a long, flat raised structure of a railway station, where people get on and off of trains | - |
| (noun) a document stating the aims and principles of a political party | Synonyms: political platform, political program, program |
| polyfoam | (noun) a foam made by adding water to polyurethane plastics | Synonyms: polyurethane foam |
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| portfolio | (noun) the role of the head of a government department | - |
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| (noun) a large, flat, thin case for carrying loose papers or drawings or maps; usually leather | - |
| (noun) a list of the financial assets held by an individual or a bank or other financial institution | - |
| (noun) a set of pieces of creative work collected to be shown to potential customers or employers | - |
| preform | (verb) form or shape beforehand or determine the shape of beforehand | - |
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| (verb) form into a shape resembling the final, desired one | - |
| preformation | (noun) a theory (popular in the 18th century and now discredited) that an individual develops by simple enlargement of a tiny fully formed organism (a homunculus) that exists in the germ cell | Synonyms: theory of preformation |
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| profound | (adjective) showing intellectual penetration or emotional depth | - |
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| (adjective) situated at or extending to great depth; too deep to have been sounded or plumbed | Synonyms: unfathomed, unplumbed, unsounded |
| (adjective) (of sleep) deep and complete | Synonyms: heavy, sound, wakeless |
| (adjective) of the greatest intensity; complete | - |
| (adjective) far-reaching and thoroughgoing in effect especially on the nature of something | Synonyms: fundamental |
| (adjective) coming from deep within one | - |
| profoundly | (adverb) to a great depth psychologically or emotionally | Synonyms: deeply, intensely |
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| profoundness | (noun) the quality of being physically deep | Synonyms: deepness, profundity |
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| (noun) intellectual depth, penetrating knowledge, keen insight, etc; "the depth of my feeling"; "the profoundness of the silence" | Synonyms: profundity |
| (noun) the intellectual ability to penetrate deeply into ideas | Synonyms: astuteness, deepness, depth, profundity |
| (noun) wisdom that is recondite and abstruse and profound | Synonyms: abstruseness, abstrusity, profundity, reconditeness |
| (noun) extremeness of degree | - |
| pussyfoot | (verb) to go stealthily or furtively | Synonyms: creep, mouse, sneak |
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| quinquefoliate | (adjective) (of a leaf shape) having five leaflets | - |
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| rainforest | (noun) a forest with heavy annual rainfall | Synonyms: rain forest |
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| reenforce | (verb) make stronger | Synonyms: reinforce |
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| reenforcement | (noun) a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission | Synonyms: reinforcement, support |
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| (noun) information that makes more forcible or convincing | Synonyms: reinforcement |
| refocus | (verb) put again into focus or focus more sharply | - |
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| (verb) focus anew | - |
| (verb) focus once again | - |
| refocusing | (noun) focusing again | - |
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| reforest | (verb) forest anew | - |
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| reforestation | (noun) the restoration (replanting) of a forest that had been reduced by fire or cutting | Synonyms: re-afforestation |
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| reforge | (verb) cast or model anew | Synonyms: recast, remodel |
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| reform | (noun) a change for the better as a result of correcting abuses | - |
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| (noun) a campaign aimed to correct abuses or malpractices | - |
| (noun) self-improvement in behavior or morals by abandoning some vice | - |
| (verb) make changes for improvement in order to remove abuse and injustices | - |
| (verb) break up the molecules of | - |
| (verb) produce by cracking | - |
| (verb) change for the better | Synonyms: see the light, straighten out |
| (verb) bring, lead, or force to abandon a wrong or evil course of life, conduct, and adopt a right one | Synonyms: reclaim, rectify, regenerate |
| (verb) improve by alteration or correction of errors or defects and put into a better condition | - |
| reformable | (adjective) susceptible to improvement or reform | Synonyms: redeemable |
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| reformation | (noun) rescuing from error and returning to a rightful course | Synonyms: reclamation |
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| (noun) improvement (or an intended improvement) in the existing form or condition of institutions or practices etc.; intended to make a striking change for the better in social or political or religious affairs | - |
| reformative | (adjective) tending to reform | Synonyms: reformatory |
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| reformatory | (adjective) tending to reform | Synonyms: reformative |
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| (noun) correctional institution for the detention and discipline and training of young or first offenders | Synonyms: reform school, training school |
| reformed | (adjective) caused to abandon an evil manner of living and follow a good one | - |
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| reformer | (noun) an apparatus that reforms the molecular structure of hydrocarbons to produce richer fuel | - |
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| (noun) a disputant who advocates reform | Synonyms: crusader, meliorist, reformist, social reformer |
| reformism | (noun) a doctrine of reform | - |
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| reformist | (adjective) favoring or promoting reform (often by government action) | Synonyms: progressive, reform-minded |
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| (noun) a disputant who advocates reform | Synonyms: crusader, meliorist, reformer, social reformer |
| reformulate | (verb) formulate or develop again, of an improved theory or hypothesis | Synonyms: redevelop |
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| reinforce | (verb) make stronger | Synonyms: reenforce |
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| (verb) strengthen and support with rewards | Synonyms: reward |
| reinforced | (adjective) (used of soaps or cleaning agents) having a substance (an abrasive or filler) added to increase effectiveness | Synonyms: built |
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| (adjective) given added strength or support | Synonyms: strengthened |
| reinforcement | (noun) an act performed to strengthen approved behavior | Synonyms: reward |
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| (noun) a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission | Synonyms: reenforcement, support |
| (noun) a device designed to provide additional strength | Synonyms: strengthener |
| (noun) (psychology) a stimulus that strengthens or weakens the behavior that produced it | Synonyms: reinforcer, reinforcing stimulus |
| (noun) information that makes more forcible or convincing | Synonyms: reenforcement |
| reinforcer | (noun) (psychology) a stimulus that strengthens or weakens the behavior that produced it | Synonyms: reinforcement, reinforcing stimulus |
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| reniform | (adjective) (of a leaf or bean shape) resembling the shape of kidney | Synonyms: kidney-shaped |
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| rockfoil | (noun) any of various plants of the genus Saxifraga | Synonyms: breakstone, saxifrage |
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| rutherford | (noun) a unit strength of a radioactive source equal to one million disintegrations per second | - |
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| rutherfordium | (noun) a radioactive transuranic element which has been synthesized | Synonyms: atomic number 104, element 104, Rf, unnilquadium, Unq |
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| sagittiform | (adjective) (of a leaf shape) like an arrow head without flaring base lobes | Synonyms: arrow-shaped, sagittate |
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| sainfoin | (noun) Eurasian perennial herb having pale pink flowers and curved pods; naturalized in Britain and North America grasslands on calcareous soils; important forage crop and source of honey in Britain | Synonyms: esparcet, holy clover, Onobrychis viciaefolia, Onobrychis viciifolia, sanfoin |
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| salamandriform | (adjective) shaped like a salamander | - |
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| salverform | (adjective) of or concerning a gamopetalous that has a slender tube and an abruptly expanded tip | - |
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| sanfoin | (noun) Eurasian perennial herb having pale pink flowers and curved pods; naturalized in Britain and North America grasslands on calcareous soils; important forage crop and source of honey in Britain | Synonyms: esparcet, holy clover, Onobrychis viciaefolia, Onobrychis viciifolia, sainfoin |
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| scaffold | (noun) a temporary arrangement erected around a building for convenience of workers | - |
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| (noun) a platform from which criminals are executed (hanged or beheaded) | - |
| (verb) provide with a scaffold for support | - |
| scaffolding | (noun) a system of scaffolds | Synonyms: staging |
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| seafood | (noun) edible fish (broadly including freshwater fish) or shellfish or roe etc | - |
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| seafowl | (noun) a bird that frequents coastal waters and the open ocean: gulls, pelicans, gannets, cormorants, albatrosses, petrels, etc. | Synonyms: sea bird, seabird |
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| semiformal | (adjective) moderately formal; requiring a dinner jacket | Synonyms: black-tie, semi-formal |
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| sevenfold | (adjective) having seven units or components | Synonyms: septuple, seven-fold |
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| (adverb) seven times | - |
| sforzando | (noun) (music) a notation written above a note and indicating that it is to be played with a strong initial attack | - |
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| (noun) an accented chord | - |
| sheepfold | (noun) a pen for sheep | Synonyms: fold, sheep pen, sheepcote |
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| sixfold | (adjective) having six units or components | Synonyms: sextuple, six-fold |
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| (adverb) by a factor of six | Synonyms: six times |
| spadefoot | (noun) a burrowing toad of the Northern Hemisphere with a horny spade-like projection on each hind foot | Synonyms: spadefoot toad |
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| splayfoot | (adjective) having feet that turn outward | Synonyms: splayfooted |
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| (noun) a foot afflicted with a fallen arch; abnormally flattened and spread out | Synonyms: flatfoot, pes planus |
| splayfooted | (adjective) having feet that turn outward | Synonyms: splayfoot |
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| straightforward | (adjective) pointed directly ahead | - |
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| (adjective) without evasion or compromise | Synonyms: square, straight |
| (adjective) without concealment or deception; honest | Synonyms: aboveboard |
| (adjective) free from ambiguity | - |
| straightforwardly | (adverb) with firmness and conviction; without compromise | Synonyms: foursquare, squarely |
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| straightforwardness | (noun) the quality of being direct and straightforward | Synonyms: downrightness |
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| (noun) without hypocrisy | Synonyms: singleness |
| suffocate | (verb) struggle for breath; have insufficient oxygen intake | Synonyms: choke, gag, strangle |
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| (verb) feel uncomfortable for lack of fresh air | - |
| (verb) be asphyxiated; die from lack of oxygen | Synonyms: asphyxiate, stifle |
| (verb) suppress the development, creativity, or imagination of | Synonyms: choke |
| (verb) become stultified, suppressed, or stifled | Synonyms: choke |
| (verb) deprive of oxygen and prevent from breathing | Synonyms: asphyxiate, smother |
| (verb) impair the respiration of or obstruct the air passage of | Synonyms: asphyxiate, choke, stifle |
| suffocating | (adjective) causing difficulty in breathing especially through lack of fresh air and presence of heat | Synonyms: choking, smothering, suffocative |
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| suffocation | (noun) killing by depriving of oxygen | Synonyms: asphyxiation |
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| (noun) the condition of being deprived of oxygen (as by having breathing stopped) | Synonyms: asphyxiation |
| suffocative | (adjective) causing difficulty in breathing especially through lack of fresh air and presence of heat | Synonyms: choking, smothering, suffocating |
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| sulfonamide | (noun) antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA | Synonyms: sulfa, sulfa drug, sulpha |
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