noun

cos

romaine lettuce

I need a cos lettuce for the Caesar salad.

I need a romaine lettuce for the Caesar salad.

She bought a bag of chopped cos.

She bought a bag of chopped romaine.

a romaine lettuce a type of lettuce with long, crisp leaves I need a romaine lettuce for the Caesar salad.

Synonyms: romaine, iceberg lettuce, little gem

Named after the Greek island of Kos, where it is said to have originated. In the US, it's almost always called 'romaine'.

Remember that 'cos' in British English is 'romaine' in American English. It comes from the island of 'Kos'.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.