Assume vs presume in English

Published on in English and Mnemonics

Last updated on

Both are guesses. Assume is weaker (little or no evidence), presume is stronger (reasonable evidence). But how to remember which is which?

Definitions:

  • Assume = make a guess based on little or no evidence.
  • Presume = make an informed guess based on reasonable evidence.

Mnemonics:

  • When you ass-ume something, it's just a guess that you have pulled from your ass.
  • When you pre-sume something, you have some pre-knowledge or pre-information to support your guess.

I suppose I should add a third word to the comparison: suppose. Coming soon™.

Sources