12-letter words containing n, a, c, h, o
- cochin china — a former French colony of Indochina (1862–1948): now the part of Vietnam that lies south of Phan Thiet
- cochin-china — a former state in S French Indochina: now part of Vietnam.
- code-sharing — a commercial agreement between two airlines that allows passengers to use a ticket from one airline to travel on another
- coelacanthic — of or relating to the coelacanth
- coenesthesia — general awareness of one's own body
- cohabitating — cohabit.
- cohabitation — the state or condition of living together in a conjugal relationship without being married
- coin changer — a machine that gives change rapidly, as to a customer, typically operated by a manual keyboard and often used in association with a cash register.
- coin machine — slot machine (def 2).
- come to hand — to become available; be received
- commonwealth — The Commonwealth is an organization consisting of the United Kingdom and most of the countries that were previously under its rule.
- concert hall — a hall where concerts are performed
- conchoidally — In a conchoidal manner.
- constraineth — Archaic third-person singular form of constrain.
- contact high — a state of altered consciousness caused by inhaling the drugs other people are smoking
- copy machine — A copy machine is the same as a copier.
- corner chair — a chair having an approximately square seat with a leg at each corner and a back extending around two adjacent sides.
- cornishwoman — a woman who is a native or inhabitant of Cornwall
- coronagraphs — Plural form of coronagraph.
- coronal hole — a part of the solar corona that appears dark on optical and x-ray images and is characterized by low temperature and low density.
- counter hand — a person who works behind a counter; assistant
- countercharm — an object or action that is capable of destroying a magical charm
- counterearth — (in Pythagorean astronomy) a planet, out of sight from our part of the earth, whose shadow upon the sun and moon, cast by a central fire that is also out of sight, causes the eclipses.
- countermarch — to march or cause to march back along the same route
- countershaft — an intermediate shaft that is driven by, but rotates in the opposite direction to, a main shaft, esp in a gear train
- craniography — examination of the skull as depicted by craniographs, photographs, and charts.
- crowned head — a monarch
- curtain hook — a hook used to attach a curtain to a curtain rail
- cyanohydrins — Plural form of cyanohydrin.
- cycloheptane — (organic compound) An alicyclic hydrocarbon, C7H14; a volatile inflammable liquid.
- cyclohexanol — (organic compound) The alicyclic alcohol derived from cyclohexane by replacement of a hydrogen atom with a hydroxyl group.
- cytochalasin — any of a group of metabolites derived from fungus that interfere with cell processes
- death notice — a public announcement, e.g. in a newspaper, that someone has died
- dechlorinate — to remove chlorine from (a substance)
- detectaphone — a device for listening secretly to others' telephone conversations
- diencephalon — the posterior section of the forebrain.
- dodecahedron — a solid figure having 12 faces.
- dodecaphonic — musical composition using the 12-tone technique.
- dog's chance — little likelihood; small chance (usually used in the negative): That project didn't have a dog's chance of succeeding.
- doomwatching — the act of watching the environment to warn of and prevent harm
- drift anchor — a sea anchor or drag.
- echinodermal — (zoology) Relating or belonging to the echinoderms.
- echolocation — the general method of locating objects by determining the time for an echo to return and the direction from which it returns, as by radar or sonar.
- elasmobranch — A cartilaginous fish of a group that comprises the sharks, rays, and skates.
- encompasseth — Archaic third-person singular form of encompass.
- encroachment — Intrusion on a person's territory, rights, etc.
- endochondral — occurring, or present, in cartilage
- endotracheal — Situated or occurring within or performed by way of the trachea.
- enharmonical — relating to the enharmonic scale
- enhypostatic — relating to enhypostasia