noun

• (uncountable) The visible vapor/vapour, gases, and fine particles given off by burning or smoldering material.
  "If those were the days, however, when steam was triumphant, they were also the days of smoke. Nowhere was this so apparent as at "Kings Cross (Suburban)" where, one after another, the Great Northern tank engines thumped their way up the incline and emerged from the tunnel, in clouds of steam and smoke, to pound their way up the last few hundred feet of gradient alongside the platform."
• (colloquial, countable) A cigarette.
  "Can I bum a smoke off you?; I need to go buy some smokes."
• (colloquial, uncountable) Anything to smoke (e.g. cigarettes, marijuana, etc.)
  "Hey, you got some smoke?"
• (colloquial, countable, never plural) An instance of smoking a cigarette, cigar, etc.; the duration of this act.
  "I lit a pipe and had a good long smoke, and went on watching."

verb

• (transitive) To inhale and exhale the smoke from a burning cigarette, cigar, pipe, etc.
  "He's smoking his pipe."
• (intransitive) To inhale and exhale tobacco smoke.
  "He used to drop into my chambers once in a while to smoke, and was first-rate company. When I gave a dinner there was generally a cover laid for him. I liked the man for his own sake, and even had he promised to turn out a celebrity it would have had no weight with me."
• (intransitive) To give off smoke.
  "My old truck was still smoking even after the repairs."
• (intransitive) To give off smoke.

name

• (UK, informal) London.
  "I'm heading down to the Smoke later this week."