snout vs proboscis

snout and proboscis both are nouns.

Word	Noun	Adjective	Verb	Adverb
snout	Yes	No	No	No
proboscis	Yes	No	No	No

As nouns, proboscis is a hyponym of snout; that is, proboscis is a word with a more specific, narrower meaning than snout:

snout: a long projecting or anterior elongation of an animal's head; especially the nose
proboscis: a long flexible snout as of an elephant

Other hyponyms of snout include trunk.

snout (noun)	proboscis (noun)
a long projecting or anterior elongation of an animal's head; especially the nose	a long flexible snout as of an elephant
beaklike projection of the anterior part of the head of certain insects such as e.g. weevils	the human nose (especially when it is large)
informal terms for the nose