hermit

noun5

1. •
   A religious recluse; someone who lives alone for religious reasons; an eremite.
2. •
   A recluse; someone who lives alone and shuns human companionship.

   • Solitary the thrush, / The hermit withdrawn to himself, avoiding the settlements, / Sings by himself a song. — 1865
3. •
   A hermit crab.

   • Because hermits are decapods and do not live within their own shells, they are not considered to be true crabs. — 2016
4. •
   A spiced cookie made with molasses, raisins, and nuts.
5. •
   Any in the subfamily Phaethornithinae of hummingbirds.