# blob

> English word · Noun · IPA /blɒb/ · frequency rank #26,344

## Definitions
1. A shapeless or amorphous mass; a vague shape or amount, especially of a liquid or semisolid substance; a clump, group or collection that lacks definite shape.
2. A large cloud of gas.
3. A large cloud of gas.
4. A bubble; a bleb.
5. A small freshwater fish (Cottus bairdii); the miller's thumb.
6. The partially inflated air bag used in the sport of blobbing.
7. A score of zero.
8. Physarum polycephalum, a bright yellow acellular slime mold known for solving puzzles, making decisions, etc. without a nervous system.
9. An extremely morbidly obese person, to the point of most of their body being composed of fat and nothing else.

## Etymology
From Middle English *blob (“attested in blobby”). Possibly onomatopoeic, similarly to bleb and blubber.

## Easily confused with
- **bo** (https://plainspell.com/en/vs/blob-vs-bo)
- **boy** (https://plainspell.com/en/vs/blob-vs-boy)
- **box** (https://plainspell.com/en/vs/blob-vs-box)
- **bob** (https://plainspell.com/en/vs/blob-vs-bob)
- **bro** (https://plainspell.com/en/vs/blob-vs-bro)
- **bow** (https://plainspell.com/en/vs/blob-vs-bow)
- **boo** (https://plainspell.com/en/vs/blob-vs-boo)
- **bot** (https://plainspell.com/en/vs/blob-vs-bot)
- **BON** (https://plainspell.com/en/vs/blob-vs-bon)
- **Boi** (https://plainspell.com/en/vs/blob-vs-boi)
- **bop** (https://plainspell.com/en/vs/blob-vs-bop)
- **bog** (https://plainspell.com/en/vs/blob-vs-bog)
- **BOM** (https://plainspell.com/en/vs/blob-vs-bom)
- **boa** (https://plainspell.com/en/vs/blob-vs-boa)
- **bod** (https://plainspell.com/en/vs/blob-vs-bod)
- **bor** (https://plainspell.com/en/vs/blob-vs-bor)
- **BRB** (https://plainspell.com/en/vs/blob-vs-brb)
- **bok** (https://plainspell.com/en/vs/blob-vs-bok)
- **bol** (https://plainspell.com/en/vs/blob-vs-bol)
- **Boe** (https://plainspell.com/en/vs/blob-vs-boe)

## Common misspellings (6)
`bblob`, `blbo`, `bllob`, `blobb`, `bolb`, `lbob`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/blob