n.1. A hollowed place in something solid; a cavity or pit: dug a hole in the ground with a shovel.
2. a. An opening or perforation: a hole in the clouds; had a hole in the elbow of my sweater.
b. Sports An opening in a defensive formation, such as the area of a baseball infield between two adjacent fielders.
c. A fault or flaw: There are holes in your argument.
3. A deep place in a body of water.
4. An animal's hollowed-out habitation, such as a burrow.
5. An ugly, squalid, or depressing dwelling.
6. A deep or isolated place of confinement; a dungeon.
7. An awkward situation; a predicament.
8. Sports a. The small pit lined with a cup into which a golf ball must be hit.
b. One of the divisions of a golf course, from tee to cup.
9. Physics A vacant position in an atom left by the absence of a valence electron, especially a position in a semiconductor that acts as a carrier of positive electric charge. Also called electron hole.