PA
Pennsylvania, Keystone State, PA, Pa.
(noun) a Mid-Atlantic state; one of the original 13 colonies
dad, dada, daddy, pa, papa, pappa, pop
(noun) an informal term for a father; probably derived from baby talk
pascal, Pa
(noun) a unit of pressure equal to one newton per square meter
protactinium, protoactinium, Pa, atomic number
(noun) a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
Source: WordNet® 3.1
Etymology 1
Noun
pa (plural pas)
(colloquial) Father, papa.
(colloquial) Grandpa, grandfather.
Usage notes
• Often capitalized when used to refer to a specific person; see Pa.
Hey, Pa, I'd like you to meet my friend Jamie.
Synonyms
• (father): da (Irish) , dad, daddy, papa, pater
• (grandfather): grandpa, grandpappy
Etymology 2
Noun
pa (plural pas)
a fortified Maori settlement of pre-European and early European times
an unfortified Maori village or settlement; a kainga
Anagrams
• A&P, AP, Ap, ap, ap.
Proper noun
PA
Pennsylvania, a state of the United States of America
Papua, a province of Indonesia
Pará, a state of Brazil
Palestinian Authority
Proto-Algonquian (sometimes abbreviated PAn to distinguish it from Proto-Algic, but usually just abbreviated PA with Proto-Algic being abbreviated PAc)
Proto-Algic (sometimes abbreviated PAc to distinguish it from Proto-Algonquian)
Proto-Athapaskan
Noun
PA (countable and uncountable, plural PAs)
Initialism of public address system (“public address”).
Initialism of personal assistant.
Initialism of personal appearance. (when a celebrity visits a public event)
Power amplifier.
Initialism of Prince Albert. (type of piercing)
Public accountant.
(legal) Public Act.
Initialism of physician assistant.
(organic compound) Initialism of polyamide.
(chemistry) Initialism of pyrrolizidine alkaloid.
Initialism of Peano arithmetic.
(anatomy) Initialism of pulmonary artery.
Adjective
PA (not comparable)
(medicine) Initialism of posteroanterior.
Phrase
PA
Initialism of per annum.
Anagrams
• A&P, AP, Ap, ap, ap.
Noun
Pa (uncountable)
(informal, in direct address) Father, dad, papa.
A short form of grandpa; grandfather.
Usage notes
• Often capitalized when used to refer to a specific person.
Hey, Pa, I'd like you to meet my friend Jamie.
Synonyms
• (father): da (Irish), dad, daddy, papa, pater
• (grandfather): grandpa, grandpappy
Anagrams
• A&P, AP, Ap, ap, ap.
Source: Wiktionary