PO

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does PO mean? 

• PO (noun)
  The noun PO has 4 senses:

1. 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

2. a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army

3. a European river; flows into the Adriatic Sea

4. an independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States

  Familiarity information: PO used as a noun is uncommon.

 Dictionary entry details 

• PO (noun)

Sense 1

Meaning:

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

Classified under:

Nouns denoting substances

Synonyms:

atomic number 84; Po; polonium

Hypernyms ("Po" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

Sense 2

Meaning:

A noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army

Classified under:

Nouns denoting people

Synonyms:

P.O.; petty officer; PO

Hypernyms ("PO" is a kind of...):

enlisted officer; noncom; noncommissioned officer (a military officer appointed from enlisted personnel)

Hyponyms (each of the following is a kind of "PO"):

master-at-arms (the senior petty officer; responsible for discipline aboard ship)

SCPO; senior chief petty officer (a senior noncommissioned officer in the Navy or Coast Guard with a rank comparable to master sergeant in the Army)

Sense 3

Meaning:

A European river; flows into the Adriatic Sea

Classified under:

Nouns denoting natural objects (not man-made)

Synonyms:

Po; Po River

Instance hypernyms:

river (a large natural stream of water (larger than a creek))

Holonyms ("Po" is a part of...):

Italia; Italian Republic; Italy (a republic in southern Europe on the Italian Peninsula; was the core of the Roman Republic and the Roman Empire between the 4th century BC and the 5th century AD)

Sense 4

Meaning:

An independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States

Classified under:

Nouns denoting groupings of people or objects

Synonyms:

PO; Post Office; United States Post Office; US Post Office

Hypernyms ("PO" is a kind of...):

independent agency (an agency of the United States government that is created by an act of Congress and is independent of the executive departments)