1. noun
    atmospheric moisture that has condensed because of cold
  2. noun
    the process of changing from a gaseous to a liquid or solid state
  3. noun
    the act of increasing the density of something
  4. noun
    the process or result of becoming smaller or pressed together; "the contraction of a gas on cooling"
  5. noun
    a shortened version of a written work
  6. noun
    (psychoanalysis) an unconscious process whereby two ideas or images combine into a single symbol; especially in dreams