Definition of ebb verb from the Oxford Advanced American Dictionary

     

    ebb

     verb
    verb
    NAmE//ɛb//
     
    Verb Forms present simple I / you / we / they ebb
     
    he / she / it ebbs
     
    past simple ebbed
     
    -ing form ebbing
     
     
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  1. 1 [intransitive] (formal) (of the tide in the ocean) to move away from the land synonym go out opposite flow
  2. 2[intransitive] ebb (away) to become gradually weaker or less synonym decrease The pain was ebbing. As night fell, our enthusiasm began to ebb away.
See the Oxford Advanced Learner's Dictionary entry: ebb