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romaine

American  
[roh-meyn, ruh-] / roʊˈmeɪn, rə- /

noun

  1. Also called cos, cos lettuce, romaine lettuce. a variety of lettuce, Lactuca sativa longifolia, having a cylindrical head of long, relatively loose leaves.


romaine British  
/ rəʊˈmeɪn /

noun

  1. the usual US and Canadian name for cos 1

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of romaine

1905–10; < French, feminine of romain Roman

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

It features whole leaves of romaine lettuce massaged by hand with a dressing of fresh garlic, lime, Worcestershire, soft-poached eggs and Cantabrian anchovies.

From The Wall Street Journal ● Aug. 31, 2026

But this week, in the region known as America’s Salad Bowl, around 300,000 pounds of his romaine hearts were chopped and plowed back into the soil.

From The Wall Street Journal ● Jul. 31, 2026

On a large dining plate, serve the romaine hearts whole alongside the bread.

From Salon ● Jul. 25, 2026

A majority of products on the company’s recall list are items sold to restaurants and retailers including chopped lettuce, shredded lettuce, blends of iceberg and romaine lettuce, and salad mixes.

From Los Angeles Times ● Jul. 20, 2026

“What happened to good, old-fashioned romaine? Or iceberg. I remember when everyone ate iceberg lettuce.”

From "South of Somewhere" by Kalena Miller

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