Definitions from Wiktionary ( )

▸ verb:  (transitive)
▸ verb:  To push or thrust (the nose or snout, face or muzzle, or head, or an object) against or into something.
▸ verb:  To rub or touch (someone or something) with the nose, face, etc., or an object.
▸ verb:  Chiefly of an animal: to dig (something, especially food) out of the ground using the nose or snout; to root.
▸ verb:  (intransitive)
▸ verb:  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.
▸ verb:  Chiefly of an animal: to push the nose or snout into the ground to dig for something, especially food; to root, to rootle.
▸ verb:  Followed by down: to settle or lie comfortably and snugly in a bed, nest, etc.; to nestle.
▸ verb:  Chiefly followed by up or with: to press affectionately against someone or something; to nestle, to snuggle.
▸ verb:  (figurative) To come into close contact with someone or something.
▸ verb:  (obsolete, rare) 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.
▸ verb:  (falconry, hunting) To train (a dog or hawk) to attack prey.
▸ verb:  (generally) Chiefly followed by up: to bring up (someone); to foster, to rear; also, to educate (someone); to train.
▸ verb:  (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 sense 2.3).

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