plural weasels
Definition of weasel
(Entry 1 of 2)
1
or plural weasel
: any of various small slender active carnivorous mammals (genus Mustela of the family Mustelidae, the weasel family) that are able to prey on animals (such as rabbits) larger than themselves, are mostly brown with white or yellowish underparts, and in northern forms turn white in winter — compare ermine sense 1a
2
: a light self-propelled tracked vehicle built either for traveling over snow, ice, or sand or as an amphibious vehicle
3
: a sneaky, untrustworthy, or insincere person
weasel
verbDefinition of weasel (Entry 2 of 2)
1
: to use weasel words : equivocate
2
: to escape from or evade a situation or obligation
—often used with out
: to manipulate shiftily
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Test Your Vocabulary
Who Knew?
-
- What is a ruelle?

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Spell words. Make bears.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share weasel
Time Traveler for weasel
The first known use of weasel was before the 12th century
See more words from the same century