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

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

Definition of pro noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Jan 15, 2026 · Noun [edit] pro (plural pros) (slang, historical) A chemical prophylaxis taken after sex to avoid contracting venereal disease.

An argument in favor of something. The pros and cons of a matter. A person who favors the affirmative side of some debatable question. A vote for the affirmative. A professional, especially in sports. An …

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-American; prowar.

Pro is an abbreviation meaning "professional". PRO can have several meanings depending on the context, but generally it refers to someone who is in favor of or supportive of something.

Pro is an abbreviation meaning "professional". Pro, PRO or variants thereof might also refer to: Mike Awesome (1965–2007), a.k.a. The Pro, American wrestler Michael Lee Alfonso.

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'': prodrug; prosimian.