noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Abbreviation of post office. abbreviation, alt-of
2. 2
   a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army wordnet
3. 3
   Abbreviation of postal order. abbreviation, alt-of

Synonyms

All synonyms

petty officerpo

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.