| Noun | 1. | rut - a groove or furrow (especially one in soft earth caused by wheels)groove, channel - a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record) | |
| 2. | rut - a settled and monotonous routine that is hard to escape; "they fell into a conversational rut" | |
| 3. | rut - applies to nonhuman mammals: a state or period of heightened sexual arousal and activity | |
| Verb | 1. | rut - be in a state of sexual excitement; of male mammalsbe - have the quality of being; (copula, used with an adjective or a predicate noun); "John is rich"; "This is not a good answer" | |
| 2. | rut - hollow out in the form of a furrow or groove; "furrow soil" | |