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

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.

Definition of pro noun from the Oxford Advanced Learner's Dictionary. a person who works as a professional, especially in a sport. He handled the situation like an old pro (= somebody who …

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'': …

Dec 29, 2025 · pro (plural pros) An advantage of something, especially when contrasted with its disadvantages (cons). synonyms, antonyms Synonyms: advantage, plus, upside Antonyms: …

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; …

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.

If noxious vapours come over, it is necessary to have an air-tight connexion between the condenser and receiver, and to pro vide the latter with an outlet tube leading to an absorption …

There are five meanings listed in OED's entry for the word pro, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.