Cos
conj, det, name, noun, slang ·Moderate ·High school level
Definitions
- 1 Synonym of romaine lettuce, a long-leaved variety of lettuce. UK
- 2 Alternative form of coz, cousin. alt-of, alternative, informal
- 3 plural of co form-of, plural
- 4 Alternative form of coss, a traditional Nepali unit of distance. alt-of, alternative
"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."
- 5 lettuce with long dark-green leaves in a loosely packed elongated head wordnet
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- 6 ratio of the adjacent side to the hypotenuse of a right-angled triangle wordnet
- 1 Informal spelling of 'cause (“because”). Ireland, South-Africa, UK, alt-of, informal
"Taking the shortcut through the alleyway by the Jobcentre Plus, just cos I can, we arrive at my flat within minutes."
- 1 Belonging to co. Gender-neutral possessive determiner, grammatically equivalent to the gendered his and her and the singular their. nonstandard
"Psychiatrists are trained to try to impose the responsibility for a patient’s problem on the patient coself, rather than on cos environment."
- 1 Alternative spelling of Kos, an island of the Aegean, Greece. alt-of, alternative
- 2 Initialism of Chamber of Secrets. abbreviation, alt-of, initialism
Example
More examples"Stay nice and quiet, okay, 'cos I'll be back real soon."
Etymology
Clipping of cos lettuce, variously derived from the Greek island of Kos and from Arabic خس (ḵass, “lettuce”).
Clipping of cousin.
From co + -s.
From Latin Cos, from Ancient Greek Κῶς (Kôs).
Related phrases
More for "cos"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.