thaw

intransitive verb

1. 1. to become liquid or semiliquid; melt: said of ice, snow, etc.
   2. to pass to an unfrozen state: said of frozen foods
   3. to have its contents melt: underground water pipes thaw in the spring
2. to rise in temperature above the freezing point, so that snow, etc. melts: said of weather conditions, with impersonal it[it will thaw tomorrow]
3. 1. to get rid of the chill, stiffness, etc. resulting from extreme cold: often with out
   2. to lose coldness or reserve of manner

transitive verb

noun

1. the act of thawing
2. a spell of weather warm enough to allow thawing
3. a becoming less reserved in manner