Meaning & Definition of Sustain in English

1. Lengthen or extend in duration or space

• "We sustained the diplomatic negotiations as long as possible"

• "Prolong the treatment of the patient"

• "Keep up the good work"

2. Undergo (as of injuries and illnesses)

• "She suffered a fracture in the accident"

• "He had an insulin shock after eating three candy bars"

• "She got a bruise on her leg"

• "He got his arm broken in the scuffle"

3. Provide with nourishment

• "We sustained ourselves on bread and water"

• "This kind of food is not nourishing for young children"

4. Supply with necessities and support

• "She alone sustained her family"

• "The money will sustain our good cause"

• "There's little to earn and many to keep"

5. Be the physical support of

• Carry the weight of

• "The beam holds up the roof"

• "He supported me with one hand while i balanced on the beam"

• "What's holding that mirror?"

6. Admit as valid

• "The court sustained the motion"

7. Establish or strengthen as with new evidence or facts

• "His story confirmed my doubts"

• "The evidence supports the defendant"