Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun p.o.

1 sense of p.o.

Sense 1
petty officer, PO, P.O. -- (a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army)
       => noncommissioned officer, noncom, enlisted officer -- (a military officer appointed from enlisted personnel)


3 of 4 senses of po

Sense 1
polonium, Po, atomic number 84 -- (a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor)
       => metallic element, metal -- (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

Sense 3
Po, Po River -- (a European river; flows into the Adriatic Sea)
       INSTANCE OF=> river -- (a large natural stream of water (larger than a creek); "the river was navigable for 50 miles")

Sense 4
United States Post Office, US Post Office, Post Office, PO -- (an independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States)
       => independent agency -- (an agency of the United States government that is created by an act of Congress and is independent of the executive departments)