Pronunciation: (in"bi-twēn'),[key] —n.Also,in"-be•tween'er. 1. a person or thing that is between two extremes, two contrasting conditions, etc.: yeses, noes, and in-betweens; a tournament for professional, amateur, and in-between. 2. a person who handles the intermediary steps, as in a manufacturing or sales process.
—adj. being between one thing, condition, etc., and another: a coat for in-between weather.