A device in some early internal combustion engines that ignited the fuel/air mixture in a tube heated by a flame

A brick wall, having enclosed flues connected to a fire, to which fruit trees are attached in order to hasten growth and ripening

(obsolete) The legal pursuit of Border Reivers across the English-Scottish border in order to recover stolen goods.

(obsolete) To perform the hot trod.

Any wind characterized by intense heat and low relative humidity

A well whose water is supplied by a hot spring.

(Britain) To increase in temperature. / (UK, informal) To become more heated. / (UK, informal) To make or become more sexually appealing, enticing or exciting.

A conflict in which actual fighting takes place between the belligerent parties.

A hot water bottle.

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