Possible Definitions:
1. Leer (v. t.) To learn.
2. Leer (a.) Empty; destitute; wanting
3. Leer (a.) Empty of contents.
4. Leer (a.) Destitute of a rider; and hence, led, not ridden; as, a leer horse.
5. Leer (a.) Wanting sense or seriousness; trifling; trivolous; as, leer words.
6. Leer (n.) An oven in which glassware is annealed.
7. Leer (n.) The cheek.
8. Leer (n.) Complexion; aspect; appearance.
9. Leer (n.) A distorted expression of the face, or an indirect glance of the eye, conveying a sinister or immodest suggestion.
10. Leer (v. i.) To look with a leer; to look askance with a suggestive expression, as of hatred, contempt, lust, etc. ; to cast a sidelong lustful or malign look.
11. Leer (v. t.) To entice with a leer, or leers; as, to leer a man to ruin.