Word Games Pro Dictionary
cos
noun
Lettuce with long dark-green leaves in a loosely packed elongated head
Quick reference
Word Facts
Listen
Audio Pronunciation
Meaning
Definitions
noun
Lettuce with long dark-green leaves in a loosely packed elongated head
noun
Ratio of the adjacent side to the hypotenuse of a right-angled triangle
Similar words
Synonyms
Check yourself
Practise This Word
Three quick questions on this word. Nothing is recorded — practise it as often as you like.