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sustain

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verb [transitive] American English pronunciation: sustain /səˈsteɪn/ 
Word Forms
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present tense
I/you/we/theysustain
he/she/itsustains
present participlesustaining
past tensesustained
past participlesustained
  1. 1
    to provide the conditions in which something can happen or exist

    Only two of the planets could sustain life.

    Analysts believe present economic growth can be sustained without inflation.

  2. 2
    formal to give someone strength, energy, or hope

    Throughout the trial he was sustained by the support of his family.

    A cup of coffee isn't enough to sustain you until lunchtime.

  3. 4
    formal to experience loss, injury, damage, etc.

    One of the officers sustained minor injuries in the fire.

    Many farmers sustained crop damage during yesterday's hailstorm.

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