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romaine

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

noun

  1. Also called cos, cos lettuce.  Also called 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.

In announcing Gramma’s death, the zoo posted video of her munching on vegetarian meals — romaine lettuce and cactus fruit were particular favorites — and meandering around her habitat and lazily plodding through a pond.

From Los Angeles Times • Nov. 24, 2025

Marler Clark also amended five other cases to include Taylor Farms’ romaine lettuce, which sickened over 50 individuals after it was found in salads catered at a high school in St. Louis, Missouri.

From Salon • Apr. 24, 2025

On Friday, Meghan posted a video to Instagram which showed her wearing a hat with the writing "lettuce romaine calm" stitched across the front of it.

From BBC • Mar. 7, 2025

The crouton may reach its pinnacle of simple greatness in a Caesar, as one-third of the triumvirate — including anchovy-rich, creamy dressing and Parmesan — joining forces to make mere romaine amazing.

From Seattle Times • Mar. 7, 2024

Maybe they were enjoying another Ping-Pong table full of romaine lettuce and Babou’s sekanjabin.

From "Darius the Great Is Not Okay" by Adib Khorram

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