Definition of modify verb from the Oxford Advanced American Dictionary

      

    modify

     verb
    verb
    NAmE//ˈmɑdəˌfaɪ//
     
    Verb Forms present simple I / you / we / they modify
     
    he / she / it modifies
     
    past simple modified
     
    -ing form modifying
     
     
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  1. 1modify something to change something slightly, especially in order to make it more suitable for a particular purpose synonym adapt The software we use has been modified for us. Patients are taught how to modify their diet. We found it cheaper to modify existing equipment rather than buy new.
  2. 2modify something to make something less extreme synonym adjust to modify your behavior/language/views
  3. 3 modify something (grammar) a word, such as an adjective or adverb, that modifies another word or group of words describes it or restricts its meaning in some way In “walk slowly,” the adverb “slowly” modifies the verb “walk.”
See the Oxford Advanced Learner's Dictionary entry: modify