say it: A-spuhn
aspen is a noun meaning "any of several trees of the genus Populus having leaves on flattened stalks so that they flutter in the lightest wind". It carries one recorded sense.
any of several trees of the genus Populus having leaves on flattened stalks so that they flutter in the lightest wind
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 aspen 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.