| (prep.) | In the space which separates; betwixt; as, New York is between Boston and Philadelphia. |
| (prep.) | Used in expressing motion from one body or place to another; from one to another of two. |
| (prep.) | Belonging in common to two; shared by both. |
| (prep.) | Belonging to, or participated in by, two, and involving reciprocal action or affecting their mutual relation; as, opposition between science and religion. |
| (prep.) | With relation to two, as involved in an act or attribute of which another is the agent or subject; as, to judge between or to choose between courses; to distinguish between you and me; to mediate between nations. |
| (prep.) | In intermediate relation to, in respect to time, quantity, or degree; as, between nine and ten o'clock. |
| (n.) | Intermediate time or space; interval. |