Definition of COS

cos

Meanings

Plural: cos, coses, cosses

Noun

  • ratio of the adjacent side to the hypotenuse of a right-angled triangle
  • lettuce with long dark-green leaves in a loosely packed elongated head
  • an odorless very poisonous gas that is a product of incomplete combustion of carbon
  • a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
  • one who refuses to serve in the armed forces on grounds of conscience
  • a state in west central United States in the Rocky Mountains
  • Synonym of romaine lettuce, a long-leaved variety of lettuce.
  • Alternative form of coz, cousin.
  • plural of co
  • Alternative form of coss, a traditional Nepali unit of distance.

Conj

  • Informal spelling of 'cause (“because”).

Det

  • Belonging to co. Gender-neutral possessive determiner, grammatically equivalent to the gendered his and her and the singular their.

Origin / Etymology

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

Synonyms

atomic number 27, carbon monoxide, carbon monoxide gas, Centennial State, Co, CO, cobalt, Colorado, conscientious objector, cos lettuce, cosine, romaine, romaine lettuce

Scrabble Score: 5

cos is a valid Scrabble (US) TWL word
cos is a valid Scrabble Word in Merriam-Webster MW Dictionary
cos is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 6

cos is a valid Words With Friends word