[{"Bold_text": "noun", "List Items": ["a furrow or track in the ground, especially one made by the passage of a vehicle or vehicles.", "any furrow, groove, etc.", "a fixed or established mode of procedure or course of life, usually dull or unpromising:to fall into a rut."]}, {"Bold_text": "verb (used with object)", "List Items": ["to make a rut or ruts in; furrow."]}, {"Bold_text": "noun", "List Items": ["the periodically recurring sexual excitement of the deer, goat, sheep, etc."]}, {"Bold_text": "verb (used without object)", "List Items": ["to be in the condition of rut."]}]