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.

6 days ago · The 2025 All-Pro teams were named by the Associated Press (AP), [1] Pro Football Writers of America (PFWA), and The Sporting News (TSN) for performance in the 2025 NFL …

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; …

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

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'': …

"forward, forth, toward the front" (as in proclaim, proceed); "beforehand, in advance"… See origin and meaning of pro-.

In some words, as proconsul, proprætor, pronoun, etc., it is properly the preposition (Latin pro, for, instead of). noun A Latin preposition occurring in several phrases used in English.

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.