The crossword solution for the term 'Starts to Unfreeze' is 'THAWS, ' which is a five-letter word. Thawing is the process of melting ice or frozen substances, such as water or food, by increasing the temperature. It is the opposite of freezing, which is the process of cooling a substance to below its freezing point. Thawing is often used to make food more edible or to make it easier to work with.