Po

symbol

the chemical element polonium.

noun

a chamber pot.

late 19th century: from French pot de chambre ‘chamber pot’.

adjective

short for poor, used to represent dialectal speech.

1. Petty Officer.
2. Pilot Officer.
3. postal order.
4. Post Office.

noun, symbol

the chemical element of atomic number 84, a radioactive metal occurring in nature only as a product of radioactive decay of uranium.

late 19th century: modern Latin, from medieval Latin Polonia ‘Poland’ (the native country of Marie Curie, the element's co-discoverer).