D defs.my
Entry 4 senses · 3 variants Webster, 1913

Lye

/lī/ · IPA /laɪ/
01 n. A strong caustic alkaline solution of potassium salts, obtained by leaching wood ashes. It is much used in making soap, etc.
  1. 1.
    A strong caustic alkaline solution of potassium salts, obtained by leaching wood ashes. It is much used in making soap, etc.
  2. 2.
    Sodium hydroxide or potassium hydroxide, or a concentrated aqueous solution of either compound.(Chem.)
02 n. A short side line, connected with the main line; a turn-out; a siding.
  1. 1.
    A short side line, connected with the main line; a turn-out; a siding.(Railroad) [Eng.]
03 n. A falsehood.
  1. 1.
    A falsehood.[Obs.]