Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
subaltern is a noun and adjective meaning "a British commissioned army officer below the rank of captain". It carries 2 recorded senses.
a British commissioned army officer below the rank of captain
military
inferior in rank or status
“the junior faculty”
“a lowly corporal”
“petty officialdom”
“a subordinate functionary”
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 subaltern come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.