(nautical) The top of a sailing ship’s mainmast.

A kind of headache that wakes the sufferer from sleep at the same time each night.

(idiomatic) Somewhere to live; shelter.

plural of heat index

plural of melon-headed whale

Peponocephala electra, a cetacean of the oceanic dolphin family Delphinidae.

A device for warming an interior space through radiant heating, by capturing the heat from periodic burning of fuel (usually wood), and then radiating the heat at a fairly constant temperature for a long period.

(slang) Indicating that a person is very foolish, or making a stupid decision.

(programming) Synonym of include guard

(in metaphor and simile, not used alone) To have an extremely pleasant experience.