Abbreviation of autonomous oblast. / Abbreviation of autonomous okrug. / (US, Navy) Abbreviation of auxiliary oiler. / (chemistry) Initialism of atomic orbital. / Abbreviation of area of operations.

Either of two species, Rhinecanthus aculeatus and Rhinecanthus rectangulus, of triggerfishes native to the reefs of Hawaii.

simple past tense and past participle of disaffirm

plural of relabeler