| ALCOS | • alcos n. Plural of alco. • ALCO n. (Australian slang) a heavy drinker or alcoholic, also ALKO. |
| ARCOS | • Arcos prop.n. A surname from Spanish. • Arcos prop.n. A taxonomic genus within the family Gobiesocidae – clingfishes. • ARCO n. (Italian) the bow of a stringed instrument. |
| COCOS | • cocos n. Plural of coco. • Cocos prop.n. A taxonomic genus within the family Palmae – with one species - the coconut palm. • Co-Cos n. Plural of Co-Co. |
| DECOS | • decos n. Plural of deco. • DECO n. a style of decorative art characteristic of the 1920s and 1930s. |
| DOCOS | • docos n. Plural of doco. • DOCO n. (Australian slang) a documentary. |
| FICOS | • Ficos prop.n. Plural of Fico. • FICO n. (Shakespeare) a fig, a gesture of contempt, also FIGO. |
| JOCOS | • JOCO n. (Scots) a joke. |
| JUCOS | • jucos n. Plural of juco. • JUCO n. (US) junior college; an athlete at a junior college. |
| LOCOS | • locos n. Plural of loco. • locos v. Third-person singular simple present indicative form of loco. • LOCO v. to poison with locoweed. |
| MICOS | • micos n. Plural of mico. • MICO n. (Tupi) the black-tailed marmoset. |
| PACOS | • pacos n. Plural of paco. • PACO n. (Quechua) an alpaca. |
| TACOS | • tacos n. Plural of taco. • tacos v. Third-person singular simple present indicative form of taco. • TACOs n. Plural of TACO. |
| TOCOS | • tocos n. Plural of toco. • TOCO n. punishment, also TOKO. |
| UNCOS | • UNCO n. a stranger, a piece of news. |