noun

• (vulgar, countable) The female genitalia, especially the vulva.
  "An' doesn't ter know? Cunt! It's thee down theer; an' what I get when I'm i'side thee, and what tha gets when I'm i'side thee; it's a' as it is, all on't."
• (vulgar, offensive, originally synecdochically, countable) An extremely unpleasant or objectionable person (in US, especially a woman; in Commonwealth more usually a man).
  "Near-synonyms: bitch; see also Thesaurus:jerk"
• (UK, Ireland, Commonwealth, countable, vulgar) An objectionable object or item.
  "Fix the car? I’ll sort the cunt out at the weekend."
• (Ireland, UK, Commonwealth, countable, vulgar) An unpleasant or difficult experience or incident.
  "The lines were up past the frozen food now; people had to cut through to get what they wanted and there was much excuse-me-ing and pardon-me-ing. “This is going to be a cunt,” Norton said morosely, and I frowned a little."

verb

• (generally vulgar) To use the word "cunt".
  "[...] and boy I can hear every word from behind my tree because that plot of hers is close to the road and she's fucking it and she's cunting it and you never heard a woman talking like that, not sober anyway[...]"
• (vulgar) To attack someone.
  "Clint Eastwood's Dirty Harry was indeed described as "fascist", notably by Pauline Kael, although there is no real evidence that Scorsese's Taxi Driver was "cunted" on first release – on the contrary, despite continuing misgivings about violence, that film was surely widely praised from the very first, getting the Palme d'Or at Cannes."
• (vulgar) To ruin something; to fuck up.
  "... 'We were going to. Duke gave you the ticket, it was all set. And then you cunted the whole plan, didn't you? You killed the bastard.'"
• (vulgar) To betray someone.
  "JOE : You cunted me. ROBERT : Language . Not in here . JOE : You lied ."

adj

• (LGBTQ slang, vulgar) Amazing or very good.
  "As noted above, "cunt" or "cunty" has evolved in Ballroom parlance to mean exactly what Banks defines it as: feminine and strong."

noun

• (chemistry) Abbreviation of copper nanotube.
  "As a comparison with earlier findings and the hybrid structures studied below, we first investigate the relaxation structures and the magnetic ground states of freestanding Fe [iron] and Co [cobalt] MACs [monatomic chains] as well as the structure parameters of pristine CuNT."