A hot water bottle.

A natural spring producing water whose temperature is greater than about 20°C (68°F).

Communication with the intent to cause sexual arousal. / Heavy flirting with elements of reality or fantasy to induce orgasm.

Pursuing someone in order to apprehend him, especially across a border.

(law) close and continuous pursuit of a fleeing suspected lawbreaker or hostile military force, especially across territorial lines.

(dated) a children's game in which a blindfolded person had to guess who was hitting them.

An enclosure, once attached to a stove, used to keep food warm

Alternative spelling of hothead

(obsolete) a hot-head

(dated) a heat wave