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Synonyms

sustain

American  
[suh-steyn] / səˈsteɪn /

verb (used with object)

  1. to support, hold, or bear up from below; bear the weight of, as a structure.

    Synonyms:
    carry
  2. to bear (a burden, charge, etc.).

  3. to undergo, experience, or suffer (injury, loss, etc.); endure without giving way or yielding.

    Synonyms:
    bear
  4. to keep (a person, the mind, the spirits, etc.) from giving way, as under trial or affliction.

  5. to keep up or keep going, as an action or process.

    to sustain a conversation.

    Synonyms:
    maintain
  6. to supply with food, drink, and other necessities of life.

  7. to provide for (an institution or the like) by furnishing means or funds.

  8. to support (a cause or the like) by aid or approval.

  9. to uphold as valid, just, or correct, as a claim or the person making it.

    The judge sustained the lawyer's objection.

  10. to confirm or corroborate, as a statement.

    Further investigation sustained my suspicions.


sustain British  
/ səˈsteɪn, səˈsteɪnɪdlɪ /

verb

  1. to hold up under; withstand

    to sustain great provocation

  2. to undergo (an injury, loss, etc); suffer

    to sustain a broken arm

  3. to maintain or prolong

    to sustain a discussion

  4. to support physically from below

  5. to provide for or give support to, esp by supplying necessities

    to sustain one's family

    to sustain a charity

  6. to keep up the vitality or courage of

  7. to uphold or affirm the justice or validity of

    to sustain a decision

  8. to establish the truth of; confirm

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. music the prolongation of a note, by playing technique or electronics

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What are other ways to say sustain? To sustain a claim or an idea is to uphold it as valid, just or correct. How does sustain differ from the synonyms maintain, support, or uphold? Find out on Thesaurus.com. 

Other Word Forms

  • nonsustaining adjective
  • sustainable adjective
  • sustained adjective
  • sustainedly adverb
  • sustaining adjective
  • sustainingly adverb
  • sustainment noun
  • unsustaining adjective

Etymology

Origin of sustain

First recorded in 1250–1300; Middle English suste(i)nen, from Anglo-French sustenir, Old French, from Latin sustinēre “to uphold,” equivalent to sus- sus- + -tinēre, combining form of tenēre “to hold”

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

She had one successful training run, but crashed on the second one, sustaining further injuries that forced her to withdraw from the Beijing Olympics.

From Los Angeles Times

Comparisons with other planets suggested Uranus should not have been able to sustain radiation levels anywhere near what Voyager recorded.

From Science Daily

The discoveries are the result of more than 30 years of sustained archaeological and geological research carried out under the Moroccan-French Program "Préhistoire de Casablanca."

From Science Daily

To sustain the AI trade, companies will need to prove to investors that AI products can generate revenue and cash flow, Huber added.

From MarketWatch

Aside from the three fatalities, four people were hospitalized including two men, both 35, who were in critical condition, and two other men, 37 and 38, who sustained minor injuries, according to the fire department.

From Los Angeles Times