cos

/kɑs/

UK: /kɒs/

cos

English Noun Top 1,866

American (Lessac) (medium)

Female 0.7s

American (Amy) (medium)

Female 0.7s

American (Ryan) (medium)

Male 0.3s

Definition

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

Etymology

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