What is the meaning of Lye?

An alkaline liquid made by leaching ashes (usually wood ashes).

Potassium or sodium hydroxide (caustic soda).

To treat with lye.

Obsolete spelling of lie.

Obsolete spelling of lie.

A short side line, connected with the main line; a turn-out; a siding.

to warm up, give off warmth

Eye dialect spelling of lyde.

inflection of ly:

  1. definite singular
  2. plural

definite singular

plural

Source: wiktionary.org