hibernate

verb

1. sleep during winter

   verb.body

   Examples

   Bears must eat a lot of food before they hibernate in their caves.

   Synonyms hole up

   Antonyms aestivate estivate

   Source: WordNet 3.0

2. be in an inactive or dormant state

   verb.social

   Source: WordNet 3.0

3. To winter; to pass the season of winter in close quarters, in a torpid or lethargic state, as certain mammals, reptiles, and insects.

   verb

   Source: webster1913