(1):

(v. i.) To make and occupy a nest; to nest.

(2):

(v. t.) To cherish, as a bird her young.

(3):

(v. i.) To lie close and snug, as a bird in her nest; to cuddle up; to settle, as in a nest; to harbor; to take shelter.

(4):

(v. i.) To move about in one's place, like a bird when shaping the interior of her nest or a young bird getting close to the parent; as, a child nestles.

(5):

(v. t.) To house, as in a nest.