Definition of: modify

(mod′ə·fī) v. ·fied, ·fy·ing v.t.
1. To make somewhat different in form, character, etc.; vary.
2. To reduce in degree or extent; moderate.
3. Gram. To qualify the meaning of; restrict; limit.
4. Ling. To alter (a vowel) by umlaut.
—v.i.
5. To be or become modified; change. See synonyms under CHANGE, TEMPER. [<F modifier <L modificare <modus measure + facere make]
—mod′i·fi′a·ble adjective