| col | (noun) a pass between mountain peaks; geomorphological term for the lowest point on a mountain ridge between two peaks | Synonyms: gap |
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| collateral | (adjective) descended from a common ancestor but through different lines | Synonyms: indirect |
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| (adjective) situated or running side by side | - |
| (adjective) additional but secondary; auxiliary; | - |
| (adjective) occurring with or following as a consequence | Synonyms: accompanying, attendant, concomitant, consequent, ensuant, incidental, resultant, sequent |
| (adjective) serving to support or corroborate | Synonyms: confirmative, confirmatory, confirming, corroborative, corroboratory, substantiating, substantiative, validating, validatory, verificatory, verifying |
| (noun) a security pledged for the repayment of a loan | - |
| collegial | (adjective) characterized by or having authority vested equally among colleagues | - |
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| (adjective) of or resembling or typical of a college or college students | Synonyms: collegiate |
| colloidal | (adjective) of or relating to or having the properties of a colloid | - |
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| colloquial | (adjective) characteristic of informal spoken language or conversation | Synonyms: conversational |
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| colonel | (noun) a commissioned military officer in the United States Army or Air Force or Marines who ranks above a lieutenant colonel and below a brigadier general | - |
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| colonial | (adjective) of or relating to or characteristic of or inhabiting a colony | - |
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| (adjective) of animals who live in colonies, such as ants | - |
| (adjective) composed of many distinct individuals united to form a whole or colony | Synonyms: compound |
| (noun) a resident of a colony | - |
| colorectal | (adjective) relating to or affecting the colon and the rectum | - |
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| colorful | (adjective) having much or varied color | Synonyms: colourful |
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| (adjective) having color or a certain color; sometimes used in combination | Synonyms: colored, coloured, colourful |
| (adjective) striking in variety and interest | Synonyms: colourful |
| colorimetrical | (adjective) of or relating to colorimetry | Synonyms: colorimetric |
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| colossal | (adjective) so great in size or force or extent as to elicit awe | Synonyms: prodigious, stupendous |
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| colourful | (adjective) having much or varied color | Synonyms: colorful |
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| (adjective) striking in variety and interest | Synonyms: colorful |
| (adjective) having color or a certain color; sometimes used in combination | Synonyms: colored, colorful, coloured |
| comal | (adjective) of certain seeds (such as cotton) having a tuft or tufts of hair | Synonyms: comate, comose |
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| combinational | (adjective) able to or tending to combine | Synonyms: combinable, combinatory |
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| combinatorial | (adjective) relating to the combination and arrangement of elements in sets | - |
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| (adjective) relating to or involving combinations | Synonyms: combinative, combinatory |
| comical | (adjective) arousing or provoking laughter | Synonyms: amusing, comic, funny, laughable, mirthful, risible |
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| commensal | (adjective) living in a state of commensalism | - |
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| (noun) either of two different animal or plant species living in close association but not interdependent | - |
| commercial | (adjective) connected with or engaged in or sponsored by or used in commerce or commercial enterprises | - |
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| (adjective) of or relating to commercialism | - |
| (adjective) of the kind or quality used in commerce; average or inferior | Synonyms: commercial-grade |
| (adjective) profit oriented | Synonyms: mercantile, mercenary, moneymaking |
| (noun) a commercially sponsored ad on radio or television | Synonyms: commercial message |
| committal | (noun) the official act of consigning a person to confinement (as in a prison or mental hospital) | Synonyms: commitment, consignment |
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| (noun) the act of committing a crime | Synonyms: commission, perpetration |
| commonsensical | (adjective) exhibiting native good judgment | Synonyms: commonsense, commonsensible |
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| commonweal | (noun) the good of a community | Synonyms: common good |
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| communal | (adjective) relating to a small administrative district or community | - |
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| (adjective) for or by a group rather than individuals | - |
| communicational | (adjective) used in communication | - |
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| compartmental | (adjective) divided up into compartments or categories | Synonyms: compartmentalised, compartmentalized |
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| compel | (verb) force somebody to do something | Synonyms: obligate, oblige |
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| (verb) necessitate or exact | - |
| complemental | (adjective) acting as or providing a complement (something that completes the whole) | Synonyms: complementary, completing |
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| compositional | (adjective) arranging or grouping | - |
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| computational | (adjective) of or involving computation or computers | - |
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| conceal | (verb) hold back; keep from being perceived by others | Synonyms: hold back, hold in |
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| (verb) prevent from being seen or discovered | Synonyms: hide |
| concentrical | (adjective) having a common center | Synonyms: concentric, homocentric |
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| conceptional | (adjective) being of the nature of a notion or concept | Synonyms: ideational, notional |
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| conceptual | (adjective) being or characterized by concepts or their formation | - |
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| conditional | (adjective) imposing or depending on or containing a condition | - |
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| (adjective) qualified by reservations | - |
| conferral | (noun) the act of conferring an honor or presenting a gift | Synonyms: bestowal, bestowment, conferment |
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| confessional | (noun) a booth where a priest sits to hear confessions | - |
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| confidential | (adjective) the level of official classification for documents next above restricted and below secret; available only to persons authorized to see documents so classified | - |
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| (adjective) denoting confidence or intimacy | - |
| (adjective) entrusted with private information and the confidence of another | - |
| (adjective) (of information) given in confidence or in secret | Synonyms: secret |
| configurational | (adjective) of or relating to or characterized by configuration | - |
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| confrontational | (adjective) of or relating to confrontation | - |
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| congeal | (verb) become gelatinous | Synonyms: jell, set |
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| congenerical | (adjective) belonging to the same genus | Synonyms: congeneric, congenerous |
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| congenial | (adjective) suitable to your needs | - |
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| (adjective) (used of plants) capable of cross-fertilization or of being grafted | - |
| congenital | (adjective) present at birth but not necessarily hereditary; acquired during fetal development | Synonyms: inborn, innate |
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| congregational | (adjective) relating to or conducted or participated in by a congregation | - |
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| congressional | (adjective) of or relating to congress | - |
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| conical | (adjective) relating to or resembling a cone | Synonyms: cone-shaped, conelike, conic |
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| conjectural | (adjective) based primarily on surmise rather than adequate evidence | Synonyms: divinatory, hypothetic, hypothetical, supposed, suppositional, suppositious, supposititious |
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| conjugal | (adjective) of or relating to marriage or to the relationship between a wife and husband | Synonyms: connubial |
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| conjunctival | (adjective) of or relating to the conjunctiva | - |
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| connatural | (adjective) normally existing at birth | Synonyms: inborn, inbred |
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| (adjective) similar in nature | - |
| connotational | (adjective) of or relating to a connotation | Synonyms: connotative of |
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| connubial | (adjective) of or relating to marriage or to the relationship between a wife and husband | Synonyms: conjugal |
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| (adverb) in a conjugal manner | Synonyms: conjugally |
| consanguineal | (adjective) related by blood | Synonyms: akin, blood-related, cognate, consanguine, consanguineous, kin |
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| consensual | (adjective) existing by consent | - |
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| consequential | (adjective) having important issues or results | Synonyms: eventful |
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| consonantal | (adjective) being or marked by or containing or functioning as a consonant | - |
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| (adjective) relating to or having the nature of a consonant | - |
| conspiratorial | (adjective) relating to or characteristic of conspiracy or conspirators | Synonyms: conspirative |
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| constitutional | (adjective) sanctioned by or consistent with or operating under the law determining the fundamental political principles of a government | - |
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| (adjective) of benefit to or intended to benefit your physical makeup | - |
| (adjective) constitutional in the structure of something (especially your physical makeup) | Synonyms: constituent, constitutive, organic |
| (adjective) existing as an essential constituent or characteristic | Synonyms: built-in, inbuilt, inherent, integral |
| (noun) a regular walk taken as a form of exercise | - |
| construal | (noun) an interpretation of the meaning of something; the act of construing | - |
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| consubstantial | (adjective) regarded as the same in substance or essence (as of the three persons of the Trinity) | - |
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| consuetudinal | (noun) a manual describing the customs of a particular group (especially the ceremonial practices of a monastic order) | Synonyms: consuetudinary |
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| consul | (noun) a diplomat appointed by a government to protect its commercial interests and help its citizens in a foreign country | - |
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| containerful | (noun) the quantity that a container will hold | - |
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| contextual | (adjective) relating to or determined by or in context | - |
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| continental | (adjective) being or concerning or limited to a continent especially the continents of North America or Europe | - |
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| (adjective) of or relating to or characteristic of a continent | - |
| (adjective) of or relating to or concerning the American colonies during and immediately after the American Revolutionary War | - |
| continual | (adjective) recurring regularly or frequently in a prolonged and closely spaced series | - |
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| (adjective) having no interruptions | - |
| contractual | (adjective) relating to or part of a binding legal agreement | - |
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| contrail | (noun) an artificial cloud created by an aircraft; caused either by condensation due to the reduction in air pressure above the wing surface or by water vapor in the engine exhaust | Synonyms: condensation trail |
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| contralateral | (adjective) on or relating to the opposite side (of the body) | - |
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| contrapuntal | (adjective) having two or more independent but harmonically related melodic parts sounding together | Synonyms: polyphonic |
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| (adjective) relating to or characteristic of or according to the rules of counterpoint | - |
| control | (noun) the activity of managing or exerting control over something | - |
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| (noun) (physiology) regulation or maintenance of a function or action or reflex etc | - |
| (noun) a mechanism that controls the operation of a machine | Synonyms: controller |
| (noun) power to direct or determine | - |
| (noun) discipline in personal and social activities | Synonyms: restraint |
| (noun) great skillfulness and knowledge of some subject or activity | Synonyms: command, mastery |
| (noun) a standard against which other conditions can be compared in a scientific experiment | Synonyms: control condition |
| (noun) the economic policy of controlling or limiting or curbing prices or wages etc. | - |
| (noun) a spiritual agency that is assumed to assist the medium during a seance | - |
| (noun) a relation of constraint of one entity (thing or person or group) by another | - |
| (noun) the state that exists when one person or group has power over another | Synonyms: ascendance, ascendancy, ascendence, ascendency, dominance |
| (verb) have a firm understanding or knowledge of; be on top of | Synonyms: master |
| (verb) be careful or certain to do something; make certain of something | Synonyms: ascertain, assure, check, ensure, insure, see, see to it |
| (verb) verify by using a duplicate register for comparison | - |
| (verb) handle and cause to function | Synonyms: operate |
| (verb) maintain influence over (others or oneself) skillfully, usually to one's advantage | Synonyms: keep in line, manipulate |
| (verb) exercise authoritative control or power over | Synonyms: command |
| (verb) lessen the intensity of; temper; hold in restraint; hold or keep within limits | Synonyms: check, contain, curb, hold, hold in, moderate |
| (verb) check or regulate (a scientific experiment) by conducting a parallel experiment or comparing with another standard | Synonyms: verify |
| (verb) place under restrictions; limit access to by law | Synonyms: restrict |
| controversial | (adjective) marked by or capable of arousing controversy | - |
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| conventional | (adjective) following accepted customs and proprieties | - |
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| (adjective) unimaginative and conformist | - |
| (adjective) (weapons) using energy for propulsion or destruction that is not nuclear energy | - |
| (adjective) rigidly formal or bound by convention | Synonyms: ceremonious |
| (adjective) represented in simplified or symbolic form | Synonyms: formal, schematic |
| (adjective) conforming with accepted standards | Synonyms: established |
| (adjective) in accord with or being a tradition or practice accepted from the past | - |
| conventual | (adjective) of communal life sequestered from the world under religious vows | Synonyms: cloistered, cloistral, monastic, monastical |
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| conversational | (adjective) characteristic of informal spoken language or conversation | Synonyms: colloquial |
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| convivial | (adjective) occupied with or fond of the pleasures of good company | Synonyms: good-time |
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| cool | (adjective) neither warm nor very cold; giving relief from heat | - |
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| (adjective) psychologically cool and unenthusiastic; unfriendly or unresponsive or showing dislike | - |
| (adjective) inducing the impression of coolness; used especially of greens and blues and violets when referring to color | - |
| (adjective) marked by calm self-control (especially in trying circumstances); unemotional | Synonyms: coolheaded, nerveless |
| (adjective) fashionable and attractive at the time; often skilled or socially adept | - |
| (adjective) being satisfactory or in satisfactory condition | Synonyms: all right, fine, hunky-dory, o.k., ok, okay |
| (adjective) used of a quantity or amount (especially of money) for emphasis | - |
| (noun) the quality of being at a refreshingly low temperature | - |
| (noun) great coolness and composure under strain | Synonyms: aplomb, assuredness, poise, sang-froid |
| (verb) loose heat | Synonyms: chill, cool down |
| (verb) make cool or cooler | Synonyms: chill, cool down |
| (verb) lose intensity | Synonyms: cool down, cool off |
| copal | (noun) a brittle aromatic resin used in varnishes | - |
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| coral | (adjective) of a strong pink to yellowish-pink color | - |
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| (noun) marine colonial polyp characterized by a calcareous skeleton; masses in a variety of shapes often forming reefs | - |
| (noun) a variable color averaging a deep pink | - |
| (noun) unfertilized lobster roe; reddens in cooking; used as garnish or to color sauces | - |
| (noun) the hard stony skeleton of a Mediterranean coral that has a delicate red or pink color and is used for jewelry | Synonyms: precious coral, red coral |
| corbel | (noun) (architecture) a triangular bracket of brick or stone (usually of slight extent) | Synonyms: truss |
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| (verb) furnish with a corbel | - |
| cordial | (adjective) diffusing warmth and friendliness | Synonyms: affable, amiable, genial |
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| (adjective) politely warm and friendly | - |
| (adjective) sincerely or intensely felt | - |
| (noun) strong highly flavored sweet liquor usually drunk after a meal | Synonyms: liqueur |
| coreferential | (adjective) relating to coreference | Synonyms: co-referent |
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| corneal | (adjective) of or related to the cornea | - |
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| cornel | (noun) a tree of shrub of the genus Cornus often having showy bracts resembling flowers | Synonyms: dogwood, dogwood tree |
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| cornmeal | (noun) coarsely ground corn | Synonyms: Indian meal |
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| coronal | (noun) flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes | Synonyms: chaplet, garland, lei, wreath |
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| corporal | (adjective) possessing or existing in bodily form | Synonyms: bodied, corporate, embodied, incarnate |
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| (adjective) affecting or characteristic of the body as opposed to the mind or spirit | Synonyms: bodily, corporeal, somatic |
| (noun) a noncommissioned officer in the Army or Air Force or Marines | - |
| corporeal | (adjective) having material or physical form or substance | Synonyms: material |
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| (adjective) affecting or characteristic of the body as opposed to the mind or spirit | Synonyms: bodily, corporal, somatic |
| corral | (noun) a pen for cattle | Synonyms: cattle pen, cow pen |
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| (verb) enclose in a corral | - |
| (verb) arrange wagons so that they form a corral | - |
| (verb) gather and secure | - |
| correctional | (adjective) concerned with or providing correction | - |
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| correlational | (adjective) relating to or employing correlation | - |
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| cortical | (adjective) of or relating to a cortex | - |
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| corticifugal | (adjective) of a nerve fiber passing outward from the cerebral cortex | Synonyms: corticoefferent, corticofugal |
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| corticipetal | (adjective) of a nerve fiber or impulse originating outside and passing toward the cerebral cortex | Synonyms: corticoafferent |
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| corticofugal | (adjective) of a nerve fiber passing outward from the cerebral cortex | Synonyms: corticifugal, corticoefferent |
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| cortisol | (noun) an adrenal-cortex hormone (trade names Hydrocortone or Cortef) that is active in carbohydrate and protein metabolism | Synonyms: Cortef, hydrocortisone, Hydrocortone |
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| coseismal | (adjective) being where earthquake waves arrive simultaneously | Synonyms: coseismic |
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| cosmogonical | (adjective) pertaining to the branch of astronomy dealing with the origin and history and structure and dynamics of the universe | Synonyms: cosmogenic, cosmogonic, cosmologic, cosmological |
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| cosmological | (adjective) pertaining to the branch of astronomy dealing with the origin and history and structure and dynamics of the universe | Synonyms: cosmogenic, cosmogonic, cosmogonical, cosmologic |
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| (adjective) pertaining to the branch of philosophy dealing with the elements and laws and especially the characteristics of the universe such as space and time and causality | Synonyms: cosmologic |
| costal | (adjective) of or relating to or near a rib | - |
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| cottontail | (noun) common small rabbit of North America having greyish or brownish fur and a tail with a white underside; a host for Ixodes pacificus and Ixodes scapularis (Lyme disease ticks) | Synonyms: cottontail rabbit, wood rabbit |
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