noun

• (horse racing) The length of a horse’s nose, used to indicate the distance between horses at the finish of a race, or any very close race.
  "Red Rum only won by a nose."
• (perfumery) A perfumer.
  "Jacques Polge, Chanel's top “nose” since 1978, made the decision when developers started trying to buy up land around Grasse, where the Muls cultivate three hectares of the precious plant."
• (idiomatic) Bouquet, the smell of something, especially wine.
• (by extension) Skill at finding information.
  "A successful reporter has a nose for news."

verb

• (intransitive) To move cautiously by advancing its front end.
  "The ship nosed through the minefield."
• (intransitive, idiomatic, also followed by around or about, in which case, ambitransitive) To snoop.
  "She was nosing around other people’s business."
• (transitive) To detect by smell or as if by smell.
  "[…] if you finde him not this moneth, you ſhall noſe him as you go vp the ſtaires into the Lobby."
• (transitive) To push with one's nose; to nuzzle.
  "[L]ambs are glad / Nosing the mother's udder, and the bird / Makes his heart voice among the blaze of flowers: […]"