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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.

The limitless blob of MDLs has long needed more structure for processing which claims have merit.

From The Wall Street Journal • Dec. 9, 2025

In one version of the task, for example, looking left meant the animal judged the blob to be a bunny, while looking right signaled that it looked more like a "T."

From Science Daily • Nov. 28, 2025

The folders included many a random blob and splodge, alongside happy snaps of the would-be Picassos making creations only a parent could love.

From BBC • Sep. 24, 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

He also saw a second X-ray and noticed that the blob was no longer there.

From "Endgame" by Frank Brady

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.