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

Welcome to Pro2 LLC. We proudly serve western New York with the finest home oxygen and respiratory products and equipment. As a full service respiratory company, Pro2 is dedicated …

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.

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; …

Synonyms for PRO: professional, expert, skilled, proficient, technical, skillful, specialist, specialized; Antonyms of PRO: nonprofessional, lay, general, unprofessional, inexpert, …

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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.

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