(n): a male parent (also used as a term of address to your father)
(n): a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
(n): any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
(n): a unit of pressure equal to one newton per square meter
(n): a unit measuring force per unit area
(n): a Mid-Atlantic state; one of the original 13 colonies
(n): one of the 50 states of the United States
(n): an electronic amplification system used as a communication system in public areas
(n): a system for communicating
Figured prominently in that well-known campaign attack ditty from the presidential election of 1884:
Ma, ma,
where's my pa?
Off to the White House,
ha, ha, ha!
Despite allegations that he fathered an illegitimate child, Grover Cleveland won the election.
In filming, another name for a runner.
Pa. Chemical element symbol for Protactinium.
Here we use it as an acronym for production associate. I understand in the film industry there are also production assistants.
Old-timey for father. Also, an acronym for public address, passive-aggressive, physician's assistant, and the postal abbreviation for Pennsylvania.