To become hot again after having cooled off (also in figurative senses).
To heat something after it has cooled off, especially previously cooked food (also in figurative senses).
An afterburner.
To become so warm as to melt ice and snow — said in reference to the weather, and used impersonally.
To gradually melt, dissolve, or become fluid; to soften from frozen
To gradually cause frozen things (such as earth, snow, ice) to melt, soften, or dissolve.
To grow gentle or genial.
The melting of ice, snow, or other frozen or congealed matter; the transformation of ice or the like into the state of a fluid; liquefaction by heat of anything congealed by frost
a period of relaxation, of reduced reserve, tension, or hostility or of increased friendliness or understanding
a period of weather warm enough to melt that which is frozen