Definition of subsist verb from the Oxford Advanced American Dictionary

     

    subsist

     verb
    verb
    NAmE//səbˈsɪst//
     
    Verb Forms present simple I / you / we / they subsist
     
    he / she / it subsists
     
    past simple subsisted
     
    -ing form subsisting
     
     
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  1. 1[intransitive] subsist (on something) to manage to stay alive, especially with limited food or money Old people often subsist on very small incomes.
  2. 2[intransitive] (formal) to exist; to be valid The terms of the contract subsist.
See the Oxford Advanced Learner's Dictionary entry: subsist