A teenagers' party game in which two participants are shut in a closet for seven minutes, giving them the opportunity to kiss etc.

Without a head; decapitated. / Without leadership. / (linguistics, of a phrase or compound) Not having a head morpheme or word.

(Australia) A blue-coated variety of the Australian Cattle Dog breed. / (Australia, slang) A police officer.

Heating of rooms within buildings.

(physics) the heat that is released or absorbed accompanying a change of state or of phase

plural of gilt-head bream

plural of hex head wrench

(thermodynamics) Any device which converts heat energy into mechanical work, by moving heat from a source to a sink.

Any of several species of bird in the genus Gallicolumba of the pigeon family, native to the Philippines, characterised by a red patch on the plumage of the breast.

Overly sympathetic to the plight of the underprivileged or exploited.