noun (1)
\ ˈwēd \

Definition of weed

 (Entry 1 of 3)

1a(1) : a plant that is not valued where it is growing and is usually of vigorous growth especially : one that tends to overgrow or choke out more desirable plants
(2) : a weedy growth of plants
b : an aquatic plant especially : seaweed
c(1) : tobacco products
(2) : marijuana
2a : an obnoxious growth, thing, or person
b : something like a weed in detrimental quality especially : an animal unfit to breed from


weeded; weeding; weeds

Definition of weed (Entry 2 of 3)

intransitive verb

: to remove weeds or something harmful

transitive verb

1a : to clear of weeds weed a garden
b(1) : to free from something hurtful or offensive
(2) : to remove the less desirable portions of
2 : to get rid of (something harmful or superfluous) often used with out


noun (2)

Definition of weed (Entry 3 of 3)

1 : garment often used in plural
2a : dress worn as a sign of mourning (as by a widow) usually used in plural
b : a band of crape worn on a man's hat as a sign of mourning usually used in plural

Examples of weed in a Sentence


We need to weed the garden.

First Known Use of weed

Noun (1)

before the 12th century, in the meaning defined at sense 1a(1)


before the 12th century, in the meaning defined at intransitive sense

Noun (2)

before the 12th century, in the meaning defined at sense 1

History and Etymology for weed

Noun (1)

Middle English, from Old English wēod weed, herb; akin to Old Saxon wiod weed

Noun (2)

Middle English wede, from Old English wǣd, gewǣde; akin to Old Norse vāth cloth, clothing and perhaps to Lithuanian austi to weave

Keep scrolling for more

Learn More about weed

Dictionary Entries near weed






weed burner

Weed eater

Statistics for weed

Look-up Popularity

Time Traveler for weed

The first known use of weed was before the 12th century

See more words from the same century

Keep scrolling for more

More Definitions for weed



English Language Learners Definition of weed

: to remove weeds from (an area of land, such as a garden)


\ ˈwēd \

Kids Definition of weed

 (Entry 1 of 2)

: a plant that tends to grow where not wanted and to prevent the growth of more desirable plants usually by taking up space


weeded; weeding

Kids Definition of weed (Entry 2 of 2)

1 : to remove weeds from I need to weed the garden.
2 : to get rid of what is not wanted She's weeding out the old computer files.

Keep scrolling for more

More from Merriam-Webster on weed

Rhyming Dictionary: Words that rhyme with weed

Spanish Central: Translation of weed

Nglish: Translation of weed for Spanish Speakers

Britannica English: Translation of weed for Arabic Speakers

Britannica.com: Encyclopedia article about weed

Comments on weed

What made you want to look up weed? Please tell us where you read or heard it (including the quote, if possible).


means, resources, or money

Get Word of the Day daily email!

Test Your Vocabulary

Homophone Quiz

  • three-bears-two-of-them-look-like-theyre-whispering-to-a-third-bear-who-looks-chuffed-to-be-the-center-of-attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!