PA

(noun) an electronic amplification system used as a communication system in public areas
synonyms : p.a. , p.a. system , pa system , public address system
(noun) a Mid-Atlantic state; one of the original 13 colonies
synonyms : keystone state , pennsylvania
(noun) an informal term for a father; probably derived from baby talk
synonyms : dad , dada , daddy , papa , pappa , pop
(noun) a unit of pressure equal to one newton per square meter
synonyms : pascal
(noun) a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
synonyms : atomic number 91 , protactinium , protoactinium

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