soap vs swab

soap

verb
  • To apply soap to in washing. 

  • To cover, lather or in any other form treat with soap, often as a prank. 

  • To be discreet about (a topic). 

noun
  • sodium pentothal 

  • A soap opera. 

  • Some other substance, often a detergent or another surfactant, able to mix with both oil and water, used for cleaning. 

  • A solid masonry unit or brick reduced in depth or height from standard dimensions. 

  • A metallic salt derived from a fatty acid, commonly used in cleaning products. 

  • Money, specially when used as a bribe. 

swab

verb
  • To use a swab on something, or clean something with a swab. 

noun
  • A sailor; a swabby. 

  • A naval officer's epaulet. 

  • A small piece of soft, absorbent material, such as gauze, used to clean wounds, apply medicine, or take samples of body fluids. Often attached to a stick or wire to aid access. 

  • A mop, especially on a ship. 

  • A piece of material used for cleaning or sampling other items like musical instruments or guns. 

  • A sample taken with a swab (piece of absorbent material). 

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