English Reference
noun · adjective · preposition

pro

n. · adj. · prep.
US /ˈpɹoʊ/ UK /pɹˈəʊ/ pro UK spelling pro's, pro's

  1. 01 B1 Intermediate

    n.a reason to do something or a positive point about a choice.

    n.an argument or factor in favor of a particular action or decision, typically paired with 'con'.

    Simple

    We made a list of the pros and cons before deciding to move to a new city.

    In context

    The committee spent hours weighing every pro against the potential long-term risks before approving the merger.

    Usage

    Almost always used in the plural phrase 'pros and cons'.

  2. 02 B2 Upper Intermediate Informal

    n.someone who is very good at their job or plays a sport for money.

    n.a person who engages in a specific activity, especially a sport or technical craft, as a main paid occupation.

    Simple

    If you want the plumbing fixed correctly, you should hire a pro.

    In context

    Even among seasoned pros, the pressure of a live television broadcast can lead to uncharacteristic mistakes.

    Teacher's tip

    While 'pro' is common in speech, 'professional' is preferred in formal business writing.

  3. 03 B2 Upper Intermediate Informal Sport

    adj.relating to a job that requires special training or playing sport for money.

    adj.relating to or belonging to a profession; often used to distinguish paid status from amateur status.

    Simple

    He decided to turn pro after winning the national amateur championship.

    In context

    The transition to a pro career requires a level of discipline that many young athletes find overwhelming at first.

  4. 04 B2 Upper Intermediate

    prep.supporting an idea or being on the side of a specific choice.

    prep.indicating support for or alignment with a specific principle, policy, or movement.

    Simple

    Are you pro or anti the new school uniform policy?

    In context

    The senator remained staunchly pro-reform throughout the debate, despite significant pressure from lobbyists.

    Usage

    Often used as a prefix with a hyphen, but can stand alone in informal questions.

You stayed with me when I turned pro," Taylor said.

BBC News· 5 Sept 2026

This is the second part in a two-part series examining pro hockey in Hamilton.

Toronto Sun· 5 Sept 2026
This entry
Level B2 · Upper Intermediate
Frequency Very common
Updated