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n. Informal
Father; papa.

[Short for papa.]

Pa 1

The symbol for protactinium.

Pa 2



1. or Pa. Pennsylvania
2. or p.a. per annum
3. physician assistant
4. or P/A power of attorney
5. press agent
6. production assistant
7. prosecuting attorney
8. public-address system
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


abbreviation for
per annum
[Latin: yearly]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.p.a. - an electronic amplification system used as a communication system in public areasP.A. - an electronic amplification system used as a communication system in public areas
amplifier - electronic equipment that increases strength of signals passing through it
communication system - a system for communicating
loudspeaker, loudspeaker system, speaker system, speaker unit, speaker - electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance
tannoy - a loudspeaker
Adv.1.p.a. - by the yearp.a. - by the year; every year (usually with reference to a sum of money paid or received); "he earned $100,000 per annum"; "we issue six volumes per annum"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


ABBR =per annum (= yearly) → por año, al año
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005