say it: SKWUR-uhl
squirrel is a noun meaning "a kind of arboreal rodent having a long bushy tail". It carries 2 recorded senses.
a kind of arboreal rodent having a long bushy tail
the fur of a squirrel
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for squirrel come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.