Lye (?), n. [Written also lie and ley.] [AS. le�xa0;h; akin to D. loog, OHG. louga, G. lauge; cf. Icel. laug a bath, a hot spring.]
A strong caustic alkaline solution of potassium salts, obtained by leaching wood ashes. It is much used in making soap, etc.
© Webster 1913.
Lye, n. Railroad
A short side line, connected with the main line; a turn-out; a siding.
[Eng.]
© Webster 1913.
Lye, n.
A falsehood. [Obs.] See Lie.
© Webster 1913.