Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
p.o. is a noun meaning "a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army". It carries one recorded sense.
a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army
Definitions, synonyms and semantic relations for p.o. come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.