7-letter words containing o, s, n, a
- casinos — Plural form of casino.
- cassino — a card game for two to four players in which players pair cards from their hands with others exposed on the table
- cassone — a highly-decorated, Italian dowry chest
- cast on — to form (the first row of stitches) in knitting and weaving
- cations — Plural form of cation.
- chalons — a city in NE France, on the River Marne: scene of Attila's defeat by the Romans (451 ad). Pop: 47 339 (1999)
- chanops — Plural form of chanop.
- chanson — a song
- classon — an elementary atomic particle
- clawson — a city in SE Michigan.
- coarsen — If something coarsens or is coarsened, it becomes thicker or rougher in texture.
- conatus — an effort or striving of natural impulse
- confabs — Plural form of confab.
- consarn — Eye dialect of concern.
- constat — (legal, religion, science) It is clearly evident; It is certain, without a doubt.
- contras — (often initial capital letter) a member of a counterrevolutionary guerrilla group in Nicaragua.
- coonass — (chiefly in Louisiana and southeast Texas) a Cajun.
- corbans — Plural form of corban.
- corneas — Plural form of cornea.
- cosenza — a city in S Italy, in Calabria. Pop: 72 998 (2001)
- costain — Thomas Bertram, 1885–1965, U.S. novelist, historian, and editor, born in Canada.
- costean — to mine for lodes
- cratons — Plural form of craton.
- crayons — Plural form of crayon.
- daemons — Plural form of daemon.
- daikons — Plural form of daikon.
- daimons — Plural form of daimon.
- daltons — Plural form of dalton.
- damsons — Plural form of damson.
- dapsone — an antimicrobial drug used to treat leprosy and certain types of dermatitis. Formula: C12H12N2O2S
- deacons — Plural form of deacon.
- dolmans — Plural form of dolman.
- domains — Plural form of domain.
- donates — Third-person singular simple present indicative form of donate.
- donatus — early-4th-century bishop of Casae Nigrae in northern Africa: leader of a heretical Christian group. Compare Donatist.
- donbass — an industrial region in E Ukraine in the plain of the Rivers Donets and lower Dnieper: the site of a major coalfield
- dopants — Plural form of dopant.
- dragons — Plural form of dragon.
- dynamos — Plural form of dynamo.
- enamors — Third-person singular simple present indicative form of enamor.
- enolase — (enzyme) A metalloenzyme responsible for the catalysis of phosphoglycerate to phosphoenolpyruvate during glycolysis.
- epinaos — a rear vestibule
- erasion — The act of erasing; a rubbing out or obliteration.
- esolang — esoteric programming language
- español — a Spanish person
- estonia — Baltic state
- etalons — Plural form of etalon.
- evasion — The action of evading something.
- falcons — Plural form of falcon.
- fanboys — Plural form of fanboy.