\ ˈprō How to pronounce pro (audio) \
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

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

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

Noun 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 The Texas Organizing Project, one of the progressive groups working to help her unseat Cuellar, had already canvassed the area, as evidenced by pro-Cisneros and pro-Sanders mailers tucked under doormats. Todd J. Gillman, Dallas News, "Fierce S. Texas race brings together Pelosi and the Koch brothers as the left targets Henry Cuellar," 21 Feb. 2020 More recipes and tips from food pros Want more tips like these? NBC News, "8 easy ground beef recipes that feed a crowd," 21 Feb. 2020 Keeping talented seniors focused on the game in front of them, not what’s in store for them as pros? Paul Daugherty,, "Doc's Morning Line: Strange team, strange season for John Brannen, UC Bearcats," 20 Feb. 2020 The steep drop-off in proven skill and experience from those four future pros to their reserves arguably did not impact a game until the Fiesta Bowl. Nathan Baird, cleveland, "Can Ohio State football’s young defensive backs offset the recent hit to the Buckeyes’ depth?," 20 Feb. 2020 Two tax pros explain how to diagnose your medical bills and make your tax situation a little healthier. Nerd Wallet, oregonlive, "How to handle medical expenses, including marijuana, on your tax return," 17 Feb. 2020 But when those leagues crumbled, prospective black pros were relegated to minor league teams, often in inhospitable, southern cities. Rob Ruck, Smithsonian Magazine, "How Baseball’s Negro Leagues Defied the Stereotypes of Segregation," 15 Feb. 2020 The former Grey's Anatomy star has been cycling with pros frequently over the last few years. Zee Krstic, Good Housekeeping, "'Grey's Anatomy' Fans Are Going Wild Over Patrick Dempsey's Latest Career Move," 14 Feb. 2020 Liotta masterfully plays opposite the equally brilliant Laura Dern in one of the most brutally awkward court scenes in recent memory that’s anything but for the seasoned and ruthless pros leading the way. Ben Flanagan |, al, "Forget the Oscars! Our favorite movie performances of 2019," 7 Feb. 2020 Recent Examples on the Web: Adverb Across the Pacific, masks have been worn for everything from disease control to anonymity during pro-democracy protests in Hong Kong, Teng said. Los Angeles Times, oregonlive, "Coronavirus fears expose cultural divide over masks," 16 Feb. 2020 Business of Fashion reported that on February 7, Burberry stated that the virus’ impact on sales was larger than Hong Kong’s pro-democracy protests, with visits to its Chinese stores down by 80 percent. Sara Radin,, "Shanghai Fashion Week Cancels Next Month’s Event Because Of Coronavirus," 11 Feb. 2020 Fox News' Chris Wallace is once again calling out pro-Trump spin on the network, even slamming one contributor on air in a tense exchange. TheWeek, "Fox News' Chris Wallace calls out Trump supporters for 'spinning' Bolton news 'like crazy'," 27 Jan. 2020 The mass detention of Muslim Uyghurs has drawn condemnation from the international community, while pro-democracy protests in Hong Kong have undermined Beijing’s rule in the semiautonomous region. Daniel Tenreiro, National Review, "Taiwan’s Election Rebuked Xi Jinping," 23 Jan. 2020 Ostrander went pro soon after her third steeplechase championship last spring and — to the surprise of no one in Alaska — made the U.S. world team by placing fourth at the national championships. Beth Bragg, Anchorage Daily News, "Counting down the top Alaska sports stories of the decade: Part 2," 27 Dec. 2019 Meanwhile, Republicans' top issue in ads in 2019 was pro-Trump messaging, followed by health care with 71,136 mentions. Caitlin Conant, CBS News, "2020 Daily Trail Markers: Democrats sound alarm as courts target ACA," 19 Dec. 2019 In January, the actor told police that he was beaten by two men in a hate crime, claiming they who looped a noose around his neck and shouted pro-Trump comments at him. Rania Aniftos, Billboard, "Jussie Smollett Could Return for 'Empire' Final Season," 18 Dec. 2019 Duarte's plan when Linda started boxing two years ago was to work her way back up and try to go pro. Dana Hunsinger Benbow, Indianapolis Star, "She was Indy's best female boxer; now her daughter, 10, with spina bifida is a boxer, too," 12 Dec. 2019 Recent Examples on the Web: Noun or adjective Find the latest in gear, tackle and boats, free seminars, kid’s zone, classes on catfishing from top pros and more. Luann Gibbs,, "Things to do in Cincinnati this week: Feb. 24-March 1," 24 Feb. 2020 Wilder briefly protested the stoppage, as a pro-Fury crowd at the MGM Grand hotel roared in delight. Tim Dahlberg,, "Tyson Fury captures WBC heavyweight title by stopping Deontay Wilder in 7th," 23 Feb. 2020 The memos, compiled over the last 18 months, also included suggestions of pro-Trump people to replace the current officials. Caitlin Yilek, Washington Examiner, "Clarence Thomas wife among conservative activists leading Trump efforts to compile ‘deep state’ hit list," 23 Feb. 2020 Facebook has taken a different approach to the pro-Bloomberg posts. Dalvin Brown, USA TODAY, "Twitter suspends 70 pro-Michael Bloomberg accounts citing its 'platform manipulation' rule," 23 Feb. 2020 Wilder briefly protested the stoppage, as a pro-Fury crowd of 15,816 at the MGM Grand hotel roared in delight. NBC News, "Tyson Fury dominates Deontay Wilder to become heavyweight champion again," 23 Feb. 2020 Wilder briefly protested the stoppage, as a pro-Fury crowd of 15,816 at the MGM Grand hotel roared in delight. Tim Dahlberg, Houston Chronicle, "Tyson Fury wins in stunning stoppage of Deontay Wilder in heavyweight tilt," 23 Feb. 2020 Iowa just suffered an exodus of future pros in offensive tackle Tristan Wirfs and defensive end A.J. Epenesa, among other departures. Nathan Baird, cleveland, "Ranking Ohio State football’s 2020 opponents: Why Michigan, Oregon and Penn State stand out," 21 Feb. 2020 To the contrary, as the recent pro-democracy protests show, India’s Muslims are introducing a new vernacular idiom of secularism through civic symbols while sometimes innovatively merging them with religious motifs. Sharik Laliwala, Quartz India, "Facing bias, India’s Muslims are rallying behind its secular constitution, not radical Islam," 20 Feb. 2020

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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Time Traveler for pro

Time Traveler

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

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Statistics for pro

Last Updated

24 Feb 2020

Cite this Entry

“Pro.” Dictionary, Merriam-Webster, Accessed 28 Feb. 2020.

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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 How to pronounce pro (audio) \
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

Thesaurus: All synonyms and antonyms for 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

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