- (computer graphics) To replace a high-resolution model with one of lower resolution but acceptably similar appearance.
- To reduce anything by one in ten, or ten percent.
- To severely reduce; to destroy almost completely.
- (Roman history) To kill one man chosen by lot out of every ten in a legion or other military group.
- To reduce to one-tenth.
- (historical) To exact a tithe or tax of 10 percent.