The meaning of PRO is an argument or evidence in affirmation. How to use pro in a sentence.

Pro definition: in favor of a proposition, opinion, etc.. See examples of PRO used in a sentence.

PRO definition: 1. an advantage to or a reason for doing something: 2. a person who plays a sport as a job rather…. Learn more.

1. a prefix, having anti- as its opposite, used to form adjectives that have the general sense “favoring” the group, interests, course of action, etc., denoted by the headword: pro-choice; …

pro- comes from Greek, and has the meaning "before, beforehand, in front of'': proboscis; prophylactic; prothesis. pro- is also attached to a word and means "primitive or early form'': …

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Nov 21, 2025 · Noun [edit] pro (plural pros) (slang, historical) A chemical prophylaxis taken after sex to avoid contracting venereal disease.

In some words, as proconsul, proprætor, pronoun, etc., it is properly the preposition (Latin pro, for, instead of). from the GNU version of the Collaborative International Dictionary of English.

He is a pro when it comes to household repairs. She handled that tricky situation like an old pro. He is playing in the pros now.

A pro player is a professional sportsman or woman. You can also use pro to refer to sports that are played by professional sportsmen or women.