verb
To push or thrust (the nose or snout, face or muzzle, or head, or an object) against or into something.
To rub or touch (someone or something) with the nose, face, etc., or an object.
Chiefly of an animal: to dig (something, especially food) out of the ground using the nose or snout; to root.
Often followed by in or into: to press or push the nose or snout, mouth, face, etc., against or into someone or something; to touch someone or something with the nose or snout, etc.
Chiefly of an animal: to push the nose or snout into the ground to dig for something, especially food; to root, to rootle.
Followed by down: to settle or lie comfortably and snugly in a bed, nest, etc.; to nestle.
Chiefly followed by up or with: to press affectionately against someone or something; to nestle, to snuggle.
To come into close contact with someone or something.
To feel or probe with the fingers.
noun
An act of nuzzling (all verb senses).
verb
Often followed by '''up or with: to nurture or train (oneself or someone) to act a certain way, have certain beliefs, etc.
(generally) Chiefly followed by up: to bring up (someone); to foster, to rear; also, to educate (someone); to train.
(literary) To care for (someone) affectionately; to hold dear (someone); to cherish, to nurse; also, to provide (someone or something) a comfortable and snug place to settle or lie (compare etymology 1, verb etymology 1, sense 2.3).