In or through the position or interval separating: between the trees; between 11 o'clock and 12 o'clock. Intermediate to, as in quantity, amount, or degree: It costs between 15 and 20 dollars. Usage Problem Connecting spatially: a railroad between the two cities. Usage Problem Associating or uniting in a reciprocal action or relationship: an agreement between workers and management; a certain resemblance between the two stories. In confidence restricted to: Between you and me, he is not qualified. By the combined effort or effect of: Between them they succeeded. In the combined ownership of: They had only a few dollars between them. As measured against. Often used to express a reciprocal relationship: choose between riding and walking. In an intermediate space, position, or time; in the interim. in between In an intermediate situation: My roommates disagreed and I was caught in between. in between times During an intervening period; in the meantime: has written several books and teaches in between times.