[Edit]

Lye is a caustic solution used for glass and soap making. It may be
sodium hydroxide (soda lye) or

less commonly, potassium hydroxide (potash lye).

Lye, West Midlands is the name of a small town in England, between Dudley and Stourbridge in the Black Country, Dudley Metropolitan Borough, West Midlands (formerly in Worcestershire).

Lye is a commune of the Indre département, in France.

RAF Lyneham, the IATA airport code