RUT
WordNet

noun


(1)   A settled and monotonous routine that is hard to escape
"They fell into a conversational rut"
(2)   A groove or furrow (especially one in soft earth caused by wheels)
(3)   Applies to nonhuman mammals: a state or period of heightened sexual arousal and activity

verb


(4)   Hollow out in the form of a furrow or groove
"Furrow soil"
(5)   Be in a state of sexual excitement; of male mammals
WiktionaryText

Etymology 1


Old French ‘noise, roar, bellowing’, from Latin rugitus, from rugire ‘to roar’

Noun



  1. Sexual desire or oestrus of cattle, and various other mammals.

Noun



  1. A furrow, groove, or track worn in the ground, as from the passage of many wheels along a road.
  2. A fixed routine, procedure, line of conduct, thought or feeling. (See also rutter)
  3. A dull routine.
    Dull job, no interests, no dates. He's really in a rut.
 
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