pro

1
[ proh ]
/ proʊ /

adverb

in favor of a proposition, opinion, etc.

noun, plural pros.

a proponent of an issue; a person who upholds the affirmative in a debate.
an argument, consideration, vote, etc., for something.
Compare con1.

Origin of pro

1
1350–1400; Middle English < Latin prō (prep) in favor of, for; akin to per-, Greek pró, Sanskrit pra

Definition for pro (2 of 8)

pro

2
[ proh ]
/ proʊ /
Informal.

adjective

noun, plural pros.

a professional.
the pros, the professional athletic leagues, as of football, baseball, or basketball: He's sure to be signed by the pros.

Origin of pro

2
First recorded in 1840–50; shortened form

Definition for pro (3 of 8)

pro

3
[ proh ]
/ proʊ /

noun, plural pros. Slang.

Origin of pro

3
shortened form

Definition for pro (4 of 8)

pro

4
[ proh; English proh ]
/ proʊ; English proʊ /

preposition Latin.

Definition for pro (5 of 8)

Pro


Biochemistry.

Definition for pro (6 of 8)

PRO

or P.R.O.


public relations officer.

Definition for pro (7 of 8)

pro-

1

a prefix indicating favor for some party, system, idea, etc., without identity with the group (pro-British; pro-Communist; proslavery), having anti- as its opposite.
a prefix of priority in space or time having especially a meaning of advancing or projecting forward or outward, and also used to indicate substitution, attached widely to stems not used as words: provision; prologue; proceed; produce; protract; procathedral; proconsul.

Origin of pro-

1
< Latin prō-, pro-, combining form representing prō pro1

Definition for pro (8 of 8)

pro-

2

a prefix identical in meaning with pro-1, occurring in words borrowed from Greek (prodrome) or formed of Greek (and occasionally Latin) elements.

Origin of pro-

2
< Greek, combining form of pró for, before; see pro1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pro

British Dictionary definitions for pro (1 of 5)

pro

1
/ (prəʊ) /

adverb

in favour of a motion, issue, course of action, etcCompare anti

preposition

in favour of

noun plural pros

(usually plural) an argument or vote in favour of a proposal or motionSee also pros and cons
(usually plural) a person who votes in favour of a proposal, motion, etc
See con 2

Word Origin for pro

from Latin prō (prep) in favour of

British Dictionary definitions for pro (2 of 5)

pro

2
/ (prəʊ) /

noun plural pros

informal short for professional
slang a prostitute

the internet domain name for

professional practitioner

adjective

informal short for professional

Word Origin for pro

C19: by shortening

British Dictionary definitions for pro (3 of 5)

PRO


abbreviation for

Public Records Office
public relations officer

British Dictionary definitions for pro (4 of 5)

pro-

1

prefix

in favour of; supportingpro-Chinese
acting as a substitute forproconsul; pronoun

Word Origin for pro-

from Latin prō (adv and prep). In compound words borrowed from Latin, prō- indicates: forward, out (project); forward and down (prostrate); away from a place (prodigal); onward in time or space (proceed); extension outwards (propagate); before in time or place (provide, protect); on behalf of (procure); acting as a substitute for (pronominal); and sometimes intensive force (promiscuous)

British Dictionary definitions for pro (5 of 5)

pro-

2

prefix

before in time or position; anterior; forwardprophase; procephalic; prognathous

Word Origin for pro-

from Greek pro (prep) before (in time, position, rank, etc)
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

Medicine definitions for pro (1 of 2)

Pro


abbr.

proline

Medicine definitions for pro (2 of 2)

pro-


pref.

Earlier; before; prior to:progenitor.
Rudimentary:pronucleus.
Anterior; in front of:procephalic.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.