Pro vs. Rookie — What's the Difference?

A professional, especially in sport

A rookie is a person new to an occupation, profession, or hobby. In sports, a rookie is a professional athlete in their first season (or year).

A prostitute.

A new recruit, especially in the army or police

An advantage or argument in favour of something

An untrained or inexperienced recruit, as in the army or police.

(of a person or an event) professional

An inexperienced person; a novice.

In favour of

(Sports) A first-year player, especially in a professional sport.

In favour of

An inexperienced recruit, especially in the police or armed forces.

An argument or consideration in favor of something

A novice.

One who supports a proposal or takes the affirmative side in a debate.

An athlete either new to the sport or to a team or in his first year of professional competition, especially said of baseball, basketball, hockey and American football players.

A professional, especially in sports.

(British) A type of firecracker, used by farmers to scare rooks.

An expert in a field of endeavor.

Non-professional; amateur

In favor; affirmatively

An awkward and inexperienced youth

Affirmative; supporting

Professional

An advantage of something, especially when contrasted with its disadvantages (cons).

A person who supports a concept or principle.

A professional sportsman.

(colloquial) Professional.

(slang) A prostitute.

A proproctor.

A chemical prophylaxis taken after sex to avoid contracting venereal disease.

In favor of.

Professional.

A Latin preposition signifying for, before, forth.

For, on, or in behalf of, the affirmative side; - in contrast with con.

An athlete who plays for pay

An argument in favor of a proposal

In favor of (an action or proposal etc.);

On the affirmative side