Synonyms of SUSTAIN

verb

1. lengthen or extend in duration or space

   • PROLONG10

   Also: keep up.

2. undergo (as of injuries and illnesses)

   • SUFFER12
   • HAVE10
   • GET4

3. provide with nourishment

   • NOURISH10
   • NURTURE7

4. supply with necessities and support

   • KEEP10
   • MAINTAIN10

5. be the physical support of; carry the weight of

   • HOLD8
   • SUPPORT11

   Also: hold up.

6. establish or strengthen as with new evidence or facts

   • CONFIRM14
   • CORROBORATE15
   • SUBSTANTIATE14
   • SUPPORT11
   • AFFIRM14