15-letter words containing a, c, t, e, r
- class president — the student president of a school or college class
- class structure — social hierarchy
- clear the decks — to prepare for action, as by removing obstacles from a field of activity or combat
- cleptoparasites — Plural form of cleptoparasite.
- climate control — air conditioning in a building or vehicle
- closed fracture — simple fracture.
- closed interval — an interval on the real line including its end points, as [0, 1], the set of reals between and including 0 and 1
- closed traverse — a traverse ending at its point of origin.
- coast artillery — artillery used for defending coastal areas.
- cocktail shaker — a container in which cocktails are mixed
- codetermination — joint participation of management and employees or employees' trade union representatives in some decisions
- cognitive radio — a radio that can automatically alter frequency, power, modulation, etc, according to where it is located
- cold-water flat — (formerly) an apartment provided with only cold running water, often in a building with no central heating.
- coldwater-river — a river in NW Mississippi, flowing S to the Tallahatchie River. 220 miles (354 km) long.
- coleman lantern — a gasoline lantern that gives a bright light, used by campers
- collaboratively — in the manner of working with others on a joint project
- collective farm — (chiefly in Communist countries) a farm or group of farms managed and owned, through the state, by the community
- collective mark — a trademark or service mark used by the members of a cooperative, a union, or other collective association to identify themselves as members.
- colorado beetle — a black-and-yellow beetle, Leptinotarsa decemlineata, that is a serious pest of potatoes, feeding on the leaves: family Chrysomelidae
- colorado desert — an arid region of SE California and NW Mexico, west of the Colorado River. Area: over 5000 sq km (2000 sq miles)
- colour sergeant — a sergeant who carries the regimental, battalion, or national colours, as in a colour guard
- combat neurosis — battle fatigue.
- combat trousers — Combat trousers are large, loose trousers with lots of pockets.
- comfort blanket — a blanket that a young child is very attached to
- comfortableness — (of clothing, furniture, etc.) producing or affording physical comfort, support, or ease: a comfortable chair; comfortable shoes.
- comma butterfly — an orange-brown European vanessid butterfly, Polygonia c-album, with a white comma-shaped mark on the underside of each hind wing
- commiseratingly — in a manner expressing commiseration
- commit to paper — to write down; record
- committal order — the document that commits someone to prison
- commodity trade — trade in raw materials and food
- common disaster — the death of an insured party and a beneficiary occurring at the same time in the same accident.
- common entrance — (in Britain) an entrance examination for a public school, usually taken at the age of 13
- comparativeness — of or relating to comparison.
- comparison test — a comparison of particular qualities or traits in two or more things in order to get a measurable assessment
- competition car — a car that has been modified to compete in racing
- compleat angler — a book on fishing (1653) by Izaak Walton.
- complementaries — forming a complement; completing.
- complementarily — In a complementary manner.
- complementarity — a state or system that involves complementary components
- complimentaries — of the nature of, conveying, or expressing a compliment, often one that is politely flattering: a complimentary remark.
- complimentarily — of the nature of, conveying, or expressing a compliment, often one that is politely flattering: a complimentary remark.
- computer dating — the use of computers by dating agencies to match their clients
- computer-phobia — a person who distrusts or is intimidated by computers.
- computerisation — (chiefly, British) alternative spelling of computerization.
- computerization — to control, perform, process, or store (a system, operation, or information) by means of or in an electronic computer or computers.
- conception rate — the success rate of artificial insemination in agricultural animals, usually expressed as a percentage
- concert pianist — a person who earns a living from giving solo performances on the piano in front of audiences
- concrete syntax — (language, data) The syntax of a language including all the features visible in the source code such as parentheses and delimiters. The concrete syntax is used when parsing the program or other input, during which it is usually converted into some kind of abstract syntax tree (conforming to an abstract syntax). In communications, concrete syntax is called transfer syntax.
- confectionaries — a candy; sweetmeat.
- confederate war — the American Civil War.