English dictionary, thesaurus, translations & etymology
FreeDict.com
noun

mushroom

MUHSH-room
noun
1
The fleshy, umbrella-shaped fruiting body of certain fungi, often eaten as food.
"She fried the mushrooms in butter and garlic before adding them to the pasta."
verb
1
To grow or increase very quickly in size, number, or scale.
"Complaints about the new policy mushroomed within hours of the announcement."
"The small startup mushroomed into a company with offices on three continents."
adj
1
Shaped like a mushroom, with a wide cap on a narrower stem.
"The explosion sent up a dark mushroom cloud over the horizon."

How to Use Mushroom

Learner’s notes

In plain EnglishThe fungus you eat, the shape it makes, or (as a verb) growing rapidly out of nowhere.

Common pairings
mushroom cloud mushroom into something wild mushrooms

Word Forms

mushroomed past tense, mushrooms singular

Study it as flashcards or scroll it in Flow — saved to your collection.
Test yourself on “mushroom” A quick quiz — meaning, synonyms & usage

Fill the Gap

Can you complete this real example?

She fried the _____ in butter and garlic before adding them to the pasta.

Etymology

From Middle English muscheron, borrowed via Old French from a word related to moss — because these fungi were first noticed growing among moss.

Rhymes for mushroom

See all rhymes for mushroom →
Definitions: FreeDict original editorial