American English

Definition of smack noun from the Oxford Advanced American Dictionary



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  1. 1[countable] a sharp hit given with your open hand, especially to a child as a punishment You'll get a smack on your backside if you're not careful.
  2. 2[countable] (informal) a hard hit given with a closed hand synonym Punch a smack on the jaw
  3. 3[countable, usually singular] a short loud sound She closed the ledger with a smack.
  4. 4[countable] (informal) a loud kiss a smack on the lips/cheek
  5. 5[uncountable] (slang) the drug heroin smack addicts
See the Oxford Advanced Learner's Dictionary entry: smack