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cos

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cos¹

  • /kɑs/ US
  • /kɒs/ UK

Rhymes with -ɒs

Where it comes from

Clipping of cos lettuce, variously derived from the Greek island of Kos and from Arabic خس (ḵass, “lettuce”).

noun coses

  1. UK Synonym of romaine lettuce, a long-leaved variety of lettuce.

    Similar: romaine lettuce

cos²

  • /kɒz/ UK
  • /kəz/ UK
  • /kʌz/ US
  • /kəz/ US

conjunction

  1. Ireland, South Africa, UK, informal Informal spelling of 'cause (“because”). Taking the shortcut through the alleyway by the Jobcentre Plus, just cos I can, we arrive at my flat within minutes.

cos³

  • /kʌz/

Where it comes from

Clipping of cousin.

noun cosses

  1. alternative, informal Alternative form of coz, cousin.

cos⁴

noun

  1. plural plural of co

determiner co's

  1. nonstandard Belonging to co. Gender-neutral possessive determiner, grammatically equivalent to the gendered his and her and the singular their. Psychiatrists are trained to try to impose the responsibility for a patient’s problem on the patient coself, rather than on cos environment.

cos⁵

noun coses · cos

  1. alternative Alternative form of coss, a traditional Nepali unit of distance. The stages and distances are as follows:—Hitounda to Bhainsa Dobháng, 3½ cos; to Bhimphédy, 4 cos; to Tambakhâni, 3 cos; to Chitlong, 3 cos; to Thankot, 3 cos; to Káthmándú, 3 cos—Total, 19½ cos.

cos⁶

Where it comes from

Clipping of cosmetology.

noun

  1. colloquial, uncountable Cosmetology. Miss Julie's School of Beauty is a startup, nonprofit cosmetology school based in Rochester designed to empower those at risk and survivors of human trafficking through vocational training. ¶ "The thing is we are not just another cosmetology school," Chapus said. "We are not a for-profit cos school

Cos⁷

Where it comes from

From Latin Cos, from Ancient Greek Κῶς (Kôs).

proper noun

  1. alternative Alternative spelling of Kos, an island of the Aegean, Greece.

CoS⁸

proper noun

  1. abbreviation, initialism Initialism of Chamber of Secrets

Thesaurus

Closest in meaning: romaine lettuce, cos lettuce, romaine, lettuce, cob, crc, cem, cod, cns, firms, dec, mic, coz, commander, crb, romanic

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Cite this
MLA

"cos." Wiktionary, via Micwyn, micwyn.com/word/cos. Accessed 6 Nov. 2026.

APA

cos. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/cos

Chicago

"cos." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/cos.

BibTeX
@misc{cos_2026,
  title = {cos},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/cos},
  urldate = {2026-11-06}
}