https://en.wikipedia.org/wiki/Hot
(EXCERPTS)
Other uses:
Pungency
Hot (Israel), an Israeli cable company
Highly optimized tolerance, a general framework for studying complexity
HOT (missile), an anti-tank missile system
Hawaii Ocean Time-series, an oceanographic time-series study
High-occupancy toll lane, a variable toll payable by some road users
A series of psychedelic phenethylamines:
HOT-2
HOT-7
HOT-17
Hawkes Ocean Technologies, a developer of deep sea equipment
Head-of-train device, a console for the end-of-train device
HOT Bowl (full name: C.H.A.M.P.S. Heart of Texas Bowl), a college football game
Higher-order thought, a concept in higher-order thought theories of consciousness