follow Dictionary.com

Love words? Sign up for our Word of the Day!

pa

[pah, paw] /pɑ, pɔ/
noun, Informal.
1.
Origin
short for papa

PA

1.
Parents' Association.
2.
paying agent.
3.
Pennsylvania (approved especially for use with zip code).
4.
physician's assistant.
5.
press agent.
6.
public-address system.

Pa

Physics.
1.
pascal; pascals.

Pa

Symbol, Chemistry

Pa.

P.A.

1.
Parents' Association.
2.
Insurance. particular average.
3.
passenger agent.
4.
post adjutant.
5.
power of attorney.
6.
press agent.
7.
public-address system.
8.
publicity agent.
9.
purchasing agent.

p.a.

1.
participial adjective.
2.
per annum.
3.
press agent.

p.-a.

1.
public-address system.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for pa

pa1

/pɑː/
noun
1.
an informal word for father

pa2

/pɑː/
noun (NZ)
1.
a Māori village or settlement
2.
(history) a Māori defensive position and settlement on a hilltop
3.
go back to the pa, to abandon city life in favour of rural life
Word Origin
Māori

pa3

abbreviation
1.
Panama

Pa

Chemical symbol
1.
protactinium
symbol
2.
pascal

PA

abbreviation
1.
Pennsylvania
2.
personal appearance
3.
personal assistant
4.
(military) Post Adjutant
5.
power of attorney
6.
press agent
7.
Press Association
8.
(banking) private account
9.
public-address system
10.
publicity agent
11.
Publishers Association
12.
purchasing agent
13.
(insurance) particular average
14.
(in New Zealand) probationary assistant
15.
Panama (international car registration)

Pa.

abbreviation
1.
Pennsylvania

p.a.

abbreviation
1.
per annum
Word Origin
Latin: yearly
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for pa

1804, colloquial shortening of papa (q.v.).

p.a.

n.

abbreviation of "public address" (system), attested from 1936.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
pa in Medicine

Pa
The symbol for the element protactinium.

PA or P.A.
abbr.
physician's assistant

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
pa in Science
Pa  
  1. Abbreviation of pascal

  2. The symbol for protactinium.


protactinium
  (prō'tāk-tĭn'ē-əm)   
Symbol Pa
A rare, extremely toxic, radioactive metallic element of the actinide series that occurs in uranium ores. It has 13 known isotopes, the most stable of which is protactinium 231 with a half-life of 32,760 years. Atomic number 91; approximate melting point 1,550°C; specific gravity 15.37; valence 4, 5. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
pa in Technology

networking
The country code for Panama.
(1999-01-27)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
Cite This Source
Related Abbreviations for pa

pa

  1. pulmonary artery
  2. Punjabi

Pa

  1. pascal
  2. protactinium

PA

  1. Palestinian Authority
  2. Panama (international vehicle ID)
  3. Pennsylvania
  4. physician's assistant
  5. plate appearances (baseball)
  6. power of attorney
  7. press agent
  8. professional association
  9. prosecuting attorney
  10. public-address system
  11. public affairs

Pa.

past

p.a.

per annum
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for pa

Some English speakers likely know this word

Word Value for pa

4
5
Scrabble Words With Friends

Quotes with pa

Nearby words for pa