also hotspot, 1888 as a skin irritation; 1931 as "nightclub;" 1938 in the firefighting sense; 1941 as "place of international conflict." See hot (adj.) + spot (n.).
the United States cannot police all of the world's hot spots
hostler
hot
hot air
hot dog
hot pants
hot spot
hot water
hotbed
hot-blooded
Hotchkiss
hotch-potch