Synonyms: P.A., P.A. system, PA, PA system, public address system
Definition: an electronic amplification system used as a communication system in public areas
Similar words: communication system
Definition: a system for communicating
Synonyms: PA, Pennsylvania, Keystone State
Definition: a Mid-Atlantic state; one of the original 13 colonies
Similar words: American state
Definition: one of the 50 states of the United States
Synonyms: dad, dada, daddy, pop, pa, papa, pappa
Definition: an informal term for a father; probably derived from baby talk
Similar words: father, male parent, begetter
Definition: a male parent (also used as a term of address to your father)
Usage: his father was born in Atlanta
Definition: a unit of pressure equal to one newton per square meter
Similar words: pressure unit
Definition: a unit measuring force per unit area
Synonyms: protactinium, protoactinium, atomic number 91, Pa
Definition: a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
Similar words: metal, metallic element
Definition: any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.