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kombu

American  
[kohm-boo] / ˈkoʊm bu /
Or konbu

noun

  1. a brown Japanese seaweed, sun-dried before use in sushi, stocks, etc.


kombu British  
/ ˈkɒmbuː /

noun

  1. a dark brown seaweed of the genus Laminaria (class Phaeophyceae) the leaves of which are dried and used esp in Japanese cookery

"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 kombu

C19: Japanese

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:

People assume it's rubbery, but that's Pacific kelp - Japanese kombu.

From BBC Apr. 29, 2026

The maki rolls are flavorful, the crudo bright and refreshing, and there are plenty of vegetable-forward dishes as well, like tempura eggplant and kombu carrots.

From Salon Feb. 2, 2026

Emily Han writes in The Kitchn that kombu is a staple Japanese ingredient that is "a seaweed that makes for a versatile pantry ingredient, providing dishes with umami flavor, nutrients, and minerals."

From Salon May 14, 2024

There are four broths to choose from for soup: kombu, sukiyaki, creamy vegetable and spicy miso.

From Seattle Times Aug. 9, 2023

She likes to add a small piece of kombu to her rice while it cooks, and sometimes seasons the cooked rice with fresh ginger, a splash of sake, toasted sesame seeds or minced herbs.

From Washington Post May 5, 2022

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