6-letter words that end in o
- cardio — Cardiovascular; pertaining to the health of the circulatory and respiratory systems.
- carrao — Limpkin.
- caruso — Enrico (enˈriːko). 1873–1921, an outstanding Italian operatic tenor; one of the first to make gramophone records
- cashoo — catechu.
- casino — A casino is a building or room where people play gambling games such as roulette.
- castro — Fidel (fɪˈdɛl; Spanish fiˈðɛl). full name Fidel Castro Ruz. 1927–2016, Cuban revolutionary and statesman: led the communist overthrow of the Batista dictatorship in 1959; prime minister (1959–76), president (1976–2008)
- catalo — a normally sterile hybrid developed from crossing the American bison with domestic cattle
- catano — a city in NE Puerto Rico, SW of San Juan.
- caucho — rubber obtained from the latex of any of several tropical American trees of the genus Castilla, especially C. elastica, of Central America.
- cenizo — chamiso.
- centro — a city in S California.
- charco — a water hole, pool, or puddle.
- charro — a traditional Mexican cowboy
- cheapo — Cheapo things are very inexpensive and probably of poor quality.
- chefoo — Zhifu.
- chromo — chromolithograph
- chrono — chronometer.
- churro — (in Spain and Latin America) a sweet, baton-shaped snack of fried dough
- cicero — a measure for type that is somewhat larger than the pica
- citato — l.s.c.
- clotho — one of the three Fates, spinner of the thread of life
- cocomo — Constructive Cost Model
- cogito — a person's philosophical theory
- colugo — flying lemur
- comedo — a plug of dirt and fatty matter in a skin duct; blackhead
- comino — The smallest of the three main islands of Malta.
- comodo — (to be performed) at a convenient relaxed speed
- concho — a metal ornament, often silver and round or oval, that is traditionally used on clothing in southwestern USA
- cooboo — an Aborigine child.
- coocoo — cuckoo adjective
- coolio — (slang) cool; awesome; alright.
- cop to — If you cop to something bad or wrong that you have done, you admit that you have done it.
- corozo — a tropical American palm, Corozo oleifera, whose seeds yield a useful oil
- cosimo — Piero di [pee-air-oh di;; Italian pye-raw dee] /piˈɛər oʊ dɪ;; Italian ˈpyɛ rɔ di/ (Show IPA), Piero di Cosimo.
- cproto — (programming, tool) A translator , written by Chin Huang at canrem.com, that generates ANSI C function prototypes from K&R C function definitions. It can also translate function definition heads between K&R style and ANSI C style. Posted to comp.sources.misc, volume 29. Runs under Unix, MS-DOS.
- crambo — a word game in which one team says a rhyme or rhyming line for a word or line given by the other team
- cranko — John. 1927–73, British choreographer, born in South Africa: director of the Stuttgart Ballet (1961–73)
- crypto — a person who secretly supports or adheres to a group, party, or belief.
- cuando — a river in central Angola, flowing SE to the Zambezi River. 457 miles (731 km) long.
- cuatro — a small guitar with four strings
- cuckoo — A cuckoo is a bird that has a call of two quick notes, and lays its eggs in other birds' nests.
- dacapo — Broad-range hardware specification language. "Mixed Level Modelling and Simulation of VLSI Systems", F.J. Rammig in Logic Design and Simulation, E. Horbst ed, N-H 1986.
- daimio — one of the great feudal lords who were vassals of the shogun.
- daimyo — (in Japan) one of the territorial magnates who dominated much of the country from about the 11th to the 19th century
- delano — a city in S California.
- dentro — (demoscene, rare) A production that is classified somewhere between a demo and an intro.
- devoto — A devotee.
- dextro — dextrorotatory
- diablo — Spanish for “devil.”.
- dinero — a former silver coin of Peru, the 10th part of a sol.