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Synonyms

blob

American  
[blob] / blɒb /

noun

  1. a globule of liquid; bubble.

  2. a small lump, drop, splotch, or daub.

    A blob of paint marred the surface.

  3. an object, especially a large one, having no distinct shape or definition.

    a blob on the horizon.

  4. a dull, slow-witted, and uninteresting person.


verb (used with object)

blobbed, blobbing
  1. to mark or splotch with blobs.

blob British  
/ blɒb /

noun

  1. a soft mass or drop, as of some viscous liquid

  2. a spot, dab, or blotch of colour, ink, etc

  3. a indistinct or shapeless form or object

  4. a slang word for condom

"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

verb

  1. (tr) to put blobs, as of ink or paint, on

"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

Other Word Forms

  • blobby adjective

Etymology

Origin of blob

1400–50; late Middle English; apparently expressive formation

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.

You can pick a green blob, a buff, tattooed Zane, gamer girl Kira or even virtual versions of real people such as the esports star Faker.

From The Wall Street Journal • Jan. 11, 2026

A few generations ago, the ultrasound would show a grainy blob.

From Science Daily • Oct. 27, 2025

The BBC analysed data from the European Copernicus climate service to calculate average temperatures between July and September across a large area of the north Pacific, sometimes known as the "warm blob".

From BBC • Oct. 17, 2025

When you look at ICE and DHS in general, a lot of people tend to conflate them into one big blob of immigration enforcement.

From Slate • Jul. 21, 2025

“There’s a blob a bit like a bowler hat,” he said.

From "Harry Potter And The Prisoner Of Azkaban" by J.K. Rowling