pa

Noun

• an electronic amplification system used as a communication system in public areas

• a Mid-Atlantic state; one of the original 13 colonies

• a unit of pressure equal to one newton per square meter

• a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead

• an informal term for a father; probably derived from baby talk

Related words

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