pa

Noun
  1. An informal term for a father;
    Probably derived from baby talk (synset 110007601)
  2. A short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead (synset 114675887)
  3. A unit of pressure equal to one newton per square meter (synset 113733408)
  4. A Mid-Atlantic state;
    One of the original 13 colonies (synset 109157081)
  5. An electronic amplification system used as a communication system in public areas (synset 104024549)

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