18-letter words containing i, n, t
- chrétien de troyes — 12th century, French poet, who wrote the five Arthurian romances Erec; Cligès; Lancelot, le chevalier de la charette; Yvain, le chevalier au lion; and Perceval, le conte del Graal (?1155–?1190), the first courtly romances
- christian brethren — Brother of the Christian Schools.
- christian brothers — a religious congregation of laymen founded in France in 1684 for the education of the poor
- christian democrat — a member or supporter of a Christian Democratic party
- christian endeavor — an organization of young people of various evangelical Protestant churches, formed in 1881 to promote Christian principles and service.
- christian reformed — of or relating to a Protestant denomination (Christian Reformed Church) organized in the U.S. in 1857 by groups that had seceded from the Dutch Reformed Church.
- christine de pisan — ?1364–?1430, French poet and prose writer, born in Venice. Her works include ballads, rondeaux, lays, and a biography of Charles V of France
- christmas shopping — shopping especially for Christmas presents, but also for Christmas food and drink, and all the other things required over the Christmas period.
- christmas stocking — A Christmas stocking is a long sock which children hang up on Christmas Eve. During the night, parents fill the stocking with small presents.
- chromatic printing — printing from blocks or types inked with various colours
- chromatic semitone — the pitch difference between one note and its sharpened or flattened equivalent
- chronic bronchitis — persistent respiratory disease
- chronostratigraphy — The branch of geology concerned with establishing the absolute ages of strata.
- chukchi-kamchatkan — Chukotian.
- cigar-store indian — a wooden statue of an American Indian, traditionally displayed at the entrance of cigar stores.
- circular breathing — a technique for sustaining a phrase on a wind instrument, using the cheeks to force air out of the mouth while breathing in through the nose
- circulating medium — currency serving as a medium of exchange
- circumnavigational — Relating to circumnavigation.
- citizen journalism — the involvement of non-professionals in reporting news, esp in blogs and other websites
- citizenship papers — the document stating that a naturalized person has been formally declared a citizen
- citta del vaticano — Vatican City
- classical sanskrit — Sanskrit of an ancient period earlier than that of the Prakrits and later than Vedic.
- classified section — the part of a publication that contains classified advertising
- clean as a whistle — If you describe something as clean as a whistle, you mean that it is completely clean.
- clinical pathology — the branch of pathology dealing with the study of disease and disease processes by means of chemical, microscopic, and serologic examinations.
- closed corporation — a corporation the stock of which is owned by a small number of persons and is rarely traded on the open market
- closed-box testing — functional testing
- clothing allowance — an amount of money to compensate for the purchase of clothes for work, school, etc
- coastguard station — the headquarters or local offices of a coastguard
- cognitive ethology — a branch of ethology concerned with the influence of conscious awareness and intention on the behaviour of an animal
- coiled tubing unit — A coiled tubing unit is all of the equipment needed to carry out coiled tubing drilling.
- coitus interruptus — the deliberate withdrawal of the penis from the vagina before ejaculation
- collagen injection — an injection of collagen into the lip in order to give it a fuller appearance
- collection charges — the charges levied to cover expenses for the collection of debt
- collision diameter — the distance between the centers of two colliding molecules when at their closest point of approach.
- colloidal solution — a mixture having particles of one component, with diameters between 10 −7 and 10 −9 metres, suspended in a continuous phase of another component. The mixture has properties between those of a solution and a fine suspension
- colonic irrigation — Colonic irrigation is a medical procedure in which a person's colon is washed by injecting water or other fluids into it.
- combination square — an adjustable device for carpenters, used as a try square, miter square, level, etc.
- combined operation — a military operation carried out jointly by allied forces
- combustion chamber — an enclosed space in which combustion takes place, such as the space above the piston in the cylinder head of an internal-combustion engine or the chambers in a gas turbine or rocket engine in which fuel and oxidant burn
- combustion furnace — a furnace used in the laboratory to carry out elemental analysis of organic compounds
- come down the pike — When something comes down the pike, it happens or occurs.
- come into the open — to become evident or public
- commando operation — a major operation for treatment of cancer of the head and neck, involving removal of many facial structures and subsequent surgical reconstruction
- commendation medal — a U.S. military decoration awarded for meritorious achievement or service
- commodity exchange — an exchange where commodities are traded
- common denominator — In mathematics, a common denominator is a number which can be divided exactly by all the denominators in a group of fractions.
- common wintergreen — a plant (Pyrola minor) of temperate and arctic regions, having rounded leaves and small pink globose flowers: family Pyrolaceae
- communication cord — a cord or chain in a train which may be pulled by a passenger to stop the train in an emergency
- communication line — a line carrying communications