Definition of alternate verb from the Oxford Advanced American Dictionary

      

    alternate

     verb
    verb
    NAmE//ˈɔltərˌneɪt//
     
    Verb Forms present simple I / you / we / they alternate
     
    he / she / it alternates
     
    past simple alternated
     
    -ing form alternating
     
     
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  1. 1 [transitive] to make things or people follow one after the other in a repeated pattern alternate A and B Alternate cubes of meat and slices of red pepper on the kebabs. alternate A with B Alternate cubes of meat with slices of red pepper on the kebabs. Her music alternates moments of sudden quiet with moments of dramatic intensity.
  2. 2[intransitive] (of things or people) to follow one after the other in a repeated pattern alternating dark and pale stripes alternate with something Dark stripes alternate with pale ones.
  3. 3[intransitive] alternate between A and B to keep changing from one thing to another and back again Her mood alternated between happiness and despair.
  4. alternation
     
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  5. NAmE//ˌɔltərˈneɪʃn//
     
    noun [uncountable, countable] the alternation of day and night Such rapid alternations of mood are a feature of her writing.
See the Oxford Advanced Learner's Dictionary entry: alternate