Dictionary definition · thaw
noun
- the process whereby heat changes something from a solid to a liquid"the power failure caused a refrigerator melt that was a disaster"
- warm weather following a freeze; snow and ice melt"they welcomed the spring thaw"
- 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"
verb
- become or cause to become soft or liquid"The sun melted the ice"
Source: Open English WordNet (CC BY 4.0).