say it: TEE-nayj
teenage is an adjective meaning "being of the age 13 through 19". It carries one recorded sense.
being of the age 13 through 19
“teenage mothers”
“the teen years”
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 teenage 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.