Definition of "Thaw" :

noun: a relaxation or slackening of tensions or reserve; becoming less hostile

"The thaw between the United States and Russia has led to increased cooperation in world affairs."

noun: warm weather following a freeze; snow and ice melt

"They welcomed the spring thaw."

noun: the process whereby heat changes something from a solid to a liquid

"The thawing of a frozen turkey takes several hours."

verb: become or cause to become soft or liquid

"The ice thawed."