16-letter words containing t, i, s
- civilian clothes — not military uniform
- clay-with-flints — a deposit of stiff clay containing unworn whole flints in the S England
- clbuttic mistake — the humorous effect created by anti-obscenity filters that automatically replace offensive words in online articles with more acceptable variants
- cleansing tissue — a small piece of absorbent paper, used especially for removing cleansing cream and cosmetics and also serving as a disposable handkerchief.
- clearsightedness — The property of being clearsighted.
- clitoridectomies — Plural form of clitoridectomy.
- cloak-and-suiter — a manufacturer or seller of clothing.
- cloistered vault — a vault having the form of a number of intersecting coves.
- closed community — a plant community that does not allow for further colonization, all the available niches being occupied
- closed-captioned — (of a video recording) having subtitles which appear on screen only if the cassette is played through a special decoder
- closing argument — In a court case, a lawyer's closing argument is their final speech, in which they give a summary of their case.
- cluster variable — RR Lyrae star.
- coadministration — Joint administration.
- cochineal cactus — a treelike cactus, Nopalea cochenillifera, of Mexico and Central America, that is a principal source of food of the cochineal insect.
- cochineal insect — a Mexican homopterous insect, Dactylopius coccus, that feeds on cacti
- cocktail sausage — a small sausage served with drinks
- cogito, ergo sum — I think, therefore I am; the basis of Descartes' philosophy
- collaborationism — The act of collaborating, especially with an enemy.
- collaborationist — A collaborationist government or individual is one that helps or gives support to the enemy during the war.
- collectivisation — Alternative spelling of collectivization.
- collector's item — A collector's item is an object which is highly valued by collectors because it is rare or beautiful.
- colonial heights — a town in central Virginia.
- color television — tv set showing images in colour
- columbia heights — a city in SE Minnesota, near Minneapolis.
- combination last — a shoe last that has a narrower heel or instep than the standard last.
- combination shot — a shot in pool in which the cue ball strikes at least one object ball before contact is made with the ball to be pocketed.
- combination skin — facial skin that is dry in some areas and greasy in others
- commensurability — The quality of being commensurable or commensurate.
- commission agent — a person who sells goods and services for a fee
- communitarianism — A theory or system of social organization based on small self-governing communities.
- community school — a school offering some nonacademic activities related to life in a particular community and often serving as a community centre
- community spirit — willingness and desire to participate in activities that promote a community
- commutation-test — the act of substituting one thing for another; substitution; exchange.
- compartmentalise — to divide into categories or compartments.
- complexity class — (algorithm) A collection of algorithms or computable functions with the same complexity.
- complicitousness — (rare, possibly nonstandard) Complicity.
- compliments slip — a slip of paper sent with a parcel that identifies the sender and expresses compliments
- composite family — the large and varied plant family Compositae (or Asteraceae), typified by herbaceous plants having alternate, opposite, or whorled leaves and a whorl of bracts surrounding the flower heads, which are usually composed of a disk containing tiny petalless flowers and a ray of petals extending from the flowers at the rim of the disk, some flower heads being composed only of a disk or a ray and some plants having clusters of flower heads, and including the aster, daisy, dandelion, goldenrod, marigold, ragweed, sunflower, thistle, and zinnia.
- composite motion — a motion in a deliberative body that combines elements of several related motions
- composite number — a positive integer that can be factorized into two or more other positive integers
- composite school — a secondary school offering both academic and nonacademic courses
- compositionality — The property of being compositional.
- compromise joint — a joint for linking together rails having different sections.
- computer science — the study of computers and their application
- computer studies — a course of study devoted to using and programming computers
- concertina crash — a collision in which vehicle after vehicle hits the one ahead in a sequence of events triggered by the first car crash
- concession stand — a stall where food, drinks, or other items are sold at a theatre or other venue
- conciliatoriness — tending to conciliate: a conciliatory manner; conciliatory comments.
- conditional sale — a sale in which the title of a property remains with the seller until some condition is met, as the payment of the full purchase price.
- confederationism — The advocacy of confederation as a means of government.