Noun has 5 senses

• pa(n = noun.person) dad, dada, daddy, papa, pappa, pop - an informal term for a father; probably derived from baby talk;


• pa(n = noun.substance) atomic number 91, protactinium, protoactinium - a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead;


• pa(n = noun.quantity) pascal - a unit of pressure equal to one newton per square meter;


• pa(n = noun.location) keystone state, pennsylvania - a Mid-Atlantic state; one of the original 13 colonies;





• pa(n = noun.artifact) p.a., p.a. system, pa system, public address system - an electronic amplification system used as a communication system in public areas;