pa

Meanings

• an informal term for a father; probably derived from baby talk
• a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
• a unit of pressure equal to one newton per square meter
• a Mid-Atlantic state; one of the original 13 colonies
• an electronic amplification system used as a communication system in public areas

Synonyms

atomic number 91, dad, dada, daddy, Keystone State, P.A., P.A. system, PA system, papa, pappa, pascal, Pennsylvania, pop, protactinium, protoactinium, public address system