say it: kuh-MYOO-tur
commuter is a noun meaning "a passenger train that is ridden primarily by passengers who travel regularly from one place to another". It carries 2 recorded senses.
a passenger train that is ridden primarily by passengers who travel regularly from one place to another
someone who travels regularly from home in a suburb to work in a city
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 commuter 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.