\ ˈprō \
plural pros

Definition of pro

 (Entry 1 of 7)

1 : an argument or evidence in affirmation an appraisal of the pros and cons
2 : the affirmative side or one holding it



Definition of pro (Entry 2 of 7)

: on the affirmative side : in affirmation much has been written pro and con

Definition of pro (Entry 3 of 7)

: in favor of : for

Definition of pro (Entry 4 of 7)

Definition of PRO (Entry 5 of 7)

public relations officer


prefix (1)

Definition of pro- (Entry 6 of 7)

1a : earlier than : prior to : before prothalamion
b : rudimentary : prot- pronucleus
c : precursory proinsulin
2a : located in front of or at the front of : anterior to procephalic
b : front : anterior prothorax
3 : projecting prognathous


prefix (2)

Definition of pro- (Entry 7 of 7)

1 : taking the place of : substituting for procathedral procaine
2 : favoring : supporting : championing pro-American

Examples of pro in a Sentence


He is a pro when it comes to household repairs. She handled that tricky situation like an old pro.

Recent Examples on the Web: Noun

Sharna’s victory makes her one of just 16 pros to have ever won the ultimate prize. Kayla Keegan, Good Housekeeping, "Bobby Bones Is Who Won 'Dancing With the Stars' Season 27 With Sharna Burgess," 19 Nov. 2018 Luckily, the singer is a bit of a pro at shaking it off (sorry), and played it very cool while the situation was sorted out. Christopher Rosa, Glamour, "Taylor Swift Had the Best Reaction to Her Onstage Set Malfunction," 15 July 2018 The once-robust tribe of pro-choice Republicans is about to become extinct in the U.S. House, and is limited to two senators. Ed Kilgore, Daily Intelligencer, "Are Democrats Crying Wolf on Threat to Abortion Rights?," 3 July 2018 All of that pro-Remain sentiment made for a lot of hungry pigs. Cam Simpson,, "Brexit’s Big Short: How Pollsters Helped Hedge Funds Beat the Crash," 25 June 2018 Tuesday was practice day for many of the PGA Tour pros who will be teeing it up at TPC River Highlands in the 2018 Travelers Championship. Shawn Mcfarland,, "For Golf's Elite, The Travelers Championship Is A Welcoming Sight After U.S. Open," 20 June 2018 Allen argued that anti-communist Cuban exiles should have a voice in Washington akin to that of the influential pro-Israel group AIPAC, American-Israel Political Action Committee. Christopher Marquis, miamiherald, "Jorge Mas Canosa dead at 58," 15 June 2018 Through 14 holes on a demanding Shinnecock layout that yielded a scoring average of 76.47, Wiseman was 8 over and ahead of top-10 pros Jason Day (9 over) and Rory McIlroy (10 over). Brentley Romine, The Courier-Journal, "Despite score, Corydon's Timothy Wiseman soaks up U.S. Open moment," 14 June 2018 That squad had a raft of future pros, including Christian Pulisic, Tyler Adams, and the Union’s Auston Trusty. Jonathan Tannenwald,, "Matthew Olosunde rises from Trenton to Manchester United and U.S. national team," 25 May 2018

Recent Examples on the Web: Adverb

The first three could have well turned pro, at a time when record numbers of underclassmen are leaving early. Brian Costa And Jim Chairusmi, WSJ, "To Compete With Alabama, Clemson Became Alabama," 30 Dec. 2018 The rest of the money came from other donors, notably pro-wrestling moguls Vince and Linda McMahon, who gave $5 million. David A. Fahrenthold, The Seattle Times, "Trump to shut down charity after lawsuit said he used it for personal and political benefit," 18 Dec. 2018 What started with two players two years ago—Leonard Fournette of LSU and Christian McCaffrey of Stanford—has quickly become a more widespread movement among players who are about to turn pro. Brian Costa, WSJ, "Now Missing From Bowl Games: Top College Football Players," 11 Dec. 2018 Additionally, on Friday, Donda’s House released a statement claiming that many supporters of the organization have turned their back on them in the wake of West’s pro-Trump comments. Dan Hyman, Billboard, "Does Kanye West Still Have a Prominent Voice in Chicago? Local Journalists, Artists & Radio DJs Weigh In," 29 May 2018 The commission wants players to have the opportunity to turn pro right out of high school. Gary Bedore, kansascity, "Payments to prep players have been 'going on since the early days' Pollard says | The Kansas City Star," 26 Apr. 2018 The 18-year-old American, who turned down a full scholarship from Stanford to turn pro last August, had her serve broken just once by the Spaniard in the 65-minute match. Beth Harris,, "Serena Williams wins first match in comeback at Indians Wells," 9 Mar. 2018 The 18-year-old American, who turned down a full scholarship from Stanford to turn pro last August, had her serve broken just once by the Spaniard in the 65-minute match. Beth Harris,, "Serena Williams wins 1st match in comeback at Indian Wells," 9 Mar. 2018 And as the special counsel’s team painstakingly detailed in its indictment of Russian hackers and propagandists, troll Facebook and Twitter accounts were central to the Kremlin’s strategy of pushing pro-Trump messages in 2016. Aaron Rupar, Vox, "Every sentence of Trump’s tweet accusing Democrats of “collusion” with Russia is a lie," 15 Nov. 2018

Recent Examples on the Web: Noun or adjective

The bill is expected to pass as the pro-democracy bloc has weakened in the past few years while under attack by authorities and are in the minority in the city’s legislature. Natasha Khan, WSJ, "Hong Kong Moves to Criminalize Disrespect of China’s National Anthem," 9 Jan. 2019 From choosing the right formulas to supercharging your complexion, here dermatologists and makeup pros weigh in on how to minimize flare-ups to maintain a remarkably clear glow through spring. Lauren Valenti, Vogue, "The Pro’s Guide to Managing Sensitive Skin This Winter," 27 Dec. 2018 Brooklinen's set earned top marks in our Lab’s recent test for fabric strength, and our pros only noted slight shrinkage and pilling. Nicole Saporita, Good Housekeeping, "The 5 Best Bed-in-a-Bag Sets You Can Buy," 24 Dec. 2018 Condolences to all the current and hypothetical Heroes of the Storm pros who just found this out right before the holidays, and to any developers potentially affected. Hayden Dingman, PCWorld, "This week in games: Heroes of the Storm winds down, Monster Hunter adds The Witcher's Geralt," 14 Dec. 2018 Perhaps Louis is taking notes from his big sister (and royal wave pro), Princes Charlotte. Erica Gonzales, Harper's BAZAAR, "Kate Middleton Says Prince Louis Is Practicing His Royal Wave," 5 Dec. 2018 By 1939, the German American Bund — one of the largest pro-Hitler groups in the country — had grown big enough to pack Madison Square Garden with 20,000 supporters. Eric Ginsburg, Teen Vogue, "American Nazis and Nazi Sympathizers Have Been Around Since the 1930’s," 26 Nov. 2018 In spite of evidence showing that prenups are on the rise among millennials, there are still plenty who believe the cons outweigh the pros. Hannah Hickok, Glamour, "I Got a Prenup—but It Wasn't to Protect My Money," 27 Nov. 2018 By stocking up your medicine cabinet and asking the pros, of course. Ella Cerón, Teen Vogue, "How to Fight Acne and Dry Skin in Winter," 13 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pro.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pro


15th century, in the meaning defined at sense 1


15th century, in the meaning defined above


1817, in the meaning defined above

Noun or adjective

1856, in the meaning defined above

History and Etymology for pro


Middle English, from Latin, preposition, for — more at for





Prefix (1)

New Latin, from Latin, from Greek, before, forward, forth, for, from pro — more at for

Prefix (2)

Latin pro in front of, before, for, forward — more at for

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Dictionary Entries near pro

Pr Man







Statistics for pro

Last Updated

13 Jan 2019

Look-up Popularity

Time Traveler for pro

The first known use of pro was in the 15th century

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More Definitions for pro



English Language Learners Definition of pro

 (Entry 1 of 2)

: in favor of something



English Language Learners Definition of pro (Entry 2 of 2)

: paid to participate in a sport or activity

: done by people who are paid to play or compete in a sport or activity


\ ˈprō \
plural pros

Kids Definition of pro

 (Entry 1 of 4)

: an argument or evidence in favor of something We weighed the pros and cons of wind power.



Kids Definition of pro (Entry 2 of 4)

: in favor of something We heard arguments pro and con.

Kids Definition of pro (Entry 3 of 4)

: professional pro athletes He sank the putt like a pro.



Kids Definition of pro-

: approving : in favor of

Medical Definition of Pro

 (Entry 1 of 2)

proline; prolyl

Medical Definition of PRO (Entry 2 of 2)

peer review organization

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More from Merriam-Webster on pro

Rhyming Dictionary: Words that rhyme with pro

Spanish Central: Translation of pro

Nglish: Translation of pro for Spanish Speakers

Britannica English: Translation of pro for Arabic Speakers

Comments on pro

What made you want to look up pro? Please tell us where you read or heard it (including the quote, if possible).


tremendous in size, volume, or degree

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