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mushroom

A2
Fairly common

Pronunciation

UK

  • /mˈʌʃruːm/

US

  • /ˈməʃrum/

Meanings

Noun

  1. a fungus with a cap and stem, often growing in damp places

  2. an edible mushroom used as a food ingredient

Verb

  1. to increase or spread very quickly

Beyond the definition

Mushrooms aren't plants or animals; they're fungi. They often pop up after rain, especially in forests, and while some are good to eat, others are highly poisonous. You can think of them as nature's little umbrellas, releasing spores that help new fungi grow.

The word "mushroom" is also often used as a verb. If something "mushrooms," it grows or spreads quickly and unexpectedly, like a rumor or a patch of fungi after a wet spring. You might say, "The protests mushroomed across the city." It is a word that suggests sudden, surprising growth.

Examples

  1. 1

    Cooking

    He added sliced mushrooms to the pasta.

  2. 2

    Foraging safety

    Some wild mushrooms are poisonous, so don't pick them unless you know what they are.

  3. 3

    Pizza order

    We ordered a mushroom pizza and a salad.

  4. 4

    Soup

    The kitchen smelled of garlic and mushroom soup.

More examples
  1. 5

    After rain

    After the rain, mushrooms appeared all over the lawn.

  2. 6

    Business growth

    Small coffee shops have mushroomed across the city in the last few years.

  3. 7

    Problem growth

    The small problem mushroomed into a serious delay.

    • Patternmushroom into + result

      become much bigger or more serious

  4. 8

    Explosion

    A huge mushroom cloud rose above the explosion.

    • Phrasemushroom cloud

      a large cloud shaped like a mushroom

See also

Similar

Shades of meaning

  • champignon

Contrast

Used with (collocations)

  • edible mushroom
  • wild mushroom
  • poisonous mushroom
  • mushroom soup

Word family

  • mushroomy

Explore

Forms and spellings

4 forms open this card.

Main spelling

  • mushroomnounverb

Forms

  • mushroomspluralnounverb
  • mushrooming-ing formverbnoun
  • mushroomedpast tenseverbnoun