shim vs wad

shim

verb
  • To fit one or more shims to a piece of machinery. 

  • To adjust the homogeneity of a magnetic field, after the mechanical devices once used for the purpose. 

  • To adjust something by using shims. 

  • To intercept and modify calls to (an API), usually for compatibility purposes. 

noun
  • A small library that transparently intercepts and modifies calls to an API, usually for compatibility purposes. 

  • A thin piece of material, sometimes tapered, used for alignment or support. 

  • A kind of shallow plow used in tillage to break the ground and clear it of weeds. 

  • A small metal device used to pick open a lock. 

  • A person characterised by both male and female traits, or by ambiguous male-female traits; a hermaphrodite. 

  • A wedge. 

  • A transsexual person, especially a trans woman; (loosely) a drag queen or transvestite. 

wad

verb
  • To insert or force a wad into. 

  • To crumple or crush into a compact, amorphous shape or ball. 

  • To wager. 

  • To stuff or line with some soft substance, or wadding, like cotton. 

noun
  • A sandwich. 

  • An ejaculation of semen. 

  • Any black manganese oxide or hydroxide mineral rich rock in the oxidized zone of various ore deposits. 

  • Plumbago, graphite. 

  • A soft plug or seal, particularly as used between the powder and pellets in a shotgun cartridge, or earlier on the charge of a muzzleloader or cannon. 

  • An amorphous, compact mass. 

  • A substantial pile (normally of money). 

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