say it: buh-TA-lyuhn
battalion is a noun meaning "an army unit usually consisting of a headquarters and three or more companies". It carries 2 recorded senses.
an army unit usually consisting of a headquarters and three or more companies
a large indefinite number
“a battalion of ants”
“a multitude of TV antennas”
“a plurality of religions”
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 battalion 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.