Pro rata is a term used to describe a proportionate allocation. It's a method of assigning an amount to a fraction according to its share of the whole. pro- prefix us/proʊ/ supporting or approving of something: pro-American (Definition of pro from the Cambridge Academic Content Dictionary © Cambridge University Press) The meaning of PRO is an argument or evidence in affirmation.

Understanding the Context

How to use pro in a sentence. Pro is a Latin root word meaning for. If you make a list of pros and cons, you are listing the reasons for doing something and the reasons not to, respectively. Pro is also the shortened form of the word "professional," often referring to professional sports.

Key Insights

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. 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 has a lot of experience).

Final Thoughts

She’s a real pro. pro noun - Definition, pictures, pronunciation and usage notes | Oxford ... 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.