| groove(noun, verb, nature, style, remove) |
| furrow(noun, verb, remove, line, drain) |
| estrus(noun, sex, sexuality) |
| routine(noun, form, activity, nature, style) |
| track(noun, mark, line, course, trace) |
| heat(noun, sex, sexuality) |
| channel(noun, verb, remove, line, way) |
| treadmill(noun, usual, routine, grind, habit) |
| trench(noun, verb, remove, line, drain) |
| trough(noun, decline, low, failure, ditch) |
| grind(noun, informal, usual, routine) |
| incision(noun, cut, line, slash, channel) |
| oestrus(noun, sexuality) |
| corrugation(noun, line, hollow, ditch, channel) |
| cut(noun, verb, mark, line, depress) |
| ditch(noun, verb, remove, line, drain) |
| flute(noun, verb, line, channel, groove) |
| habit(noun, form, practice, way, course) |
| score(noun, verb, cut, mark, line) |
| chamfer |