slap vs smack

slap

verb
  • To give a slap to. 

  • To impose a penalty, etc. on (someone). 

  • To play slap bass on (an instrument). 

  • To be excellent. 

  • To cause something to strike soundly. 

  • To strike soundly against something. 

  • To place, to put carelessly. 

adv
  • Exactly, precisely 

noun
  • The percussive sound produced in slap bass playing. 

  • An eye-catching sticker used in street art. 

  • Makeup; cosmetics. 

  • A blow, especially one given with the open hand, or with something broad and flat. 

  • A sharp percussive sound like that produced by such a blow. 

smack

verb
  • To slap or hit someone. 

  • To strike a child (usually on the buttocks) as a form of discipline. (normal U.S. and Canadian term spank) 

  • To have a particular taste; used with of. 

  • To wetly separate the lips, making a noise, after tasting something or in expectation of a treat. 

  • To indicate or suggest something; used with of. 

  • To get the flavor of. 

  • To kiss with a close compression of the lips, so as to make a sound when they separate. 

  • To make a smacking sound. 

noun
  • A group of jellyfish. 

  • A sharp blow; a slap. See also: spank. 

  • The sound of a loud kiss. 

  • A distinct flavor, especially if slight. 

  • A small sailing vessel, commonly rigged as a sloop, used chiefly in the coasting and fishing trade and often called a fishing smack 

  • A slight trace of something; a smattering. 

  • A form of fried potato; a scallop. 

  • A quick, sharp noise, as of the lips when suddenly separated, or of a whip. 

  • Heroin. 

adv
  • As if with a smack or slap; smartly; sharply. 

How often have the words slap and smack occurred in a corpus of books? (source: Google Ngram Viewer )