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Synonyms

pro

1 American  
[proh] / proʊ /

adverb

  1. in favor of a proposition, opinion, etc.


noun

plural

pros
  1. a proponent of an issue; a person who upholds the affirmative in a debate.

  2. an argument, consideration, vote, etc., for something.

pro- 2 American  
  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.

  2. 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.


pro 3 American  
[proh] / proʊ /

adjective

  1. professional.


noun

plural

pros
  1. a professional.

  2. the pros, the professional athletic leagues, as of football, baseball, or basketball.

    He's sure to be signed by the pros.

pro- 4 American  
  1. a prefix identical in meaning with pro-1 , occurring in words borrowed from Greek (prodrome ) or formed of Greek (and occasionally Latin) elements.


pro 5 American  
[proh] / proʊ /

noun

Slang.

plural

pros
  1. prophylactic.


pro 6 American  
[proh] / proʊ /

preposition

Latin.
  1. for.


Pro 7 American  

abbreviation

Biochemistry.
  1. proline.


PRO 8 American  
Or P.R.O.
  1. public relations officer.


pro 1 British  
/ prəʊ /

adverb

  1. in favour of a motion, issue, course of action, etc Compare anti

"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

preposition

  1. in favour of

"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

noun

  1. (usually plural) an argument or vote in favour of a proposal or motion See also pros and cons

  2. (usually plural) a person who votes in favour of a proposal, motion, 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
pro 2 British  
/ prəʊ /

noun

  1. informal short for professional

  2. slang a prostitute

"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

abbreviation

  1. professional practitioner

"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

adjective

  1. informal short for professional

"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
PRO 3 British  

abbreviation

  1. Public Records Office

  2. public relations officer

"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

pro- 4 British  

prefix

  1. in favour of; supporting

    pro-Chinese

  2. acting as a substitute for

    proconsul

    pronoun

"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

pro- 5 British  

prefix

  1. before in time or position; anterior; forward

    prophase

    procephalic

    prognathous

"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

Etymology

Origin of pro1

First recorded in 1400–50; Middle English, from Latin prō (preposition) “in favor of, on behalf of,” akin to Greek pró, Sanskrit pra; for, per ( def. )

Origin of pro-2

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

Origin of pro3

First recorded in 1840–50; by shortening

Origin of pro-4

< Greek, combining form of pró for, before; pro 1

Origin of pro5

First recorded in 1945–50; by shortening

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The siblings played in their first pro event of the year Saturday — the Masters Tournament in Palm Springs.

From Los Angeles Times

Carroll, who turned 74 this season, was hired as a steady hand whose championship-experience in college and in the pros would make the Raiders instantly competitive.

From The Wall Street Journal

The 23-year-old lefty from Georgia turned pro last year after topping the PGA Tour University rankings following a record seven wins in his college career.

From BBC

What are the pros and cons of a “big stick” approach to diplomacy?

From The Wall Street Journal

Another pro tip: avoiding checking bags, so she has more time to relax and freshen up upon arrival.

From The Wall Street Journal