1. (noun)dad, dada, daddy, pa, papa, pappa, pop an informal term for a father; probably derived from baby talk Synonyms: tonic, dada, protoactinium, atomic number 91, pa, popping, pappa, dad, pop, papa, daddy, public address system, dadaism, pop music, protactinium, soda pop, soda water, pascal, soda
5. (noun)public address system, P.A. system, PA system, P.A., PA an electronic amplification system used as a communication system in public areas Synonyms: daddy, atomic number 91, protactinium, dad, pascal, pappa, dada, publicaddress system, protoactinium, papa, pop