amicable and friendly / kind, sympathetic and generous

The act of exercising or stretching in preparation for strenuous activity / Any act of preparation for a performance / A period of time allocated for performing warm-ups.

(intransitive) To become warmer. / (transitive) To heat or reheat (e.g. food). / (intransitive, transitive) To reach, or cause to reach, a normal operating temperature (of a car for example).

(informal) A good impression; a feeling of comfort or trust. / (informal, chiefly in the plural, often derogatory) A sense of accomplishment after performing an act.

(zoology) maintaining a relatively constant and warm body temperature, regardless of the ambient temperature; endothermic. / (idiomatic) passionate

warm as a freshly baked muffin

(vulgar, slang) lukewarm

(meteorology) The trailing edge of a retreating mass of cold air.

the state of being warm-blooded

In a warm-hearted manner.