Princeton's WordNet

1. smoke, smoking(noun)

   the act of smoking tobacco or other substances

   "he went outside for a smoke"; "smoking stinks"

2. smoke, smoking(adj)

   a hot vapor containing fine particles of carbon being produced by combustion

   "the fire produced a tower of black smoke that could be seen for miles"

3. smoking(adj)

   emitting smoke in great volume

   "a smoking fireplace"

Kernerman English Learner's Dictionary

1. smoking(noun)ˈoʊkɪŋ

   the activity of using cigarettes

   Smoking is prohibited.; I've tried to give up smoking so many times.

Wiktionary

1. smoking(Noun)

   The inhalation of tobacco, or use substances.

   Smoking is permitted.

2. smoking(Adjective)

   Giving off smoke.

3. smoking(Adjective)

   Sexually attractive, usually referring to a woman.

   That woman is smoking-hot

Webster Dictionary

1. Smoking

   of Smoke

2. Smoking

   a. & n. from Smoke

U.S. National Library of Medicine

1. Smoking

   Inhaling and exhaling the smoke of tobacco or something similar to tobacco.

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