topcoat vs. overcoat

topcoat

noun

  1. a lightweight overcoat.
  2. the coat of paint applied last to a surface.

verb (used with object)

  1. to apply the topcoat to (a surface).

overcoat

noun

  1. a coat worn over the ordinary indoor clothing, as in cold weather.
  2. Also called overcoating. an added coating, coating, as of paint, applied for protection.

verb (used with object)

  1. to apply an additional coat of paint to (a surface).