C1verb2K

Sustain

UK /["/səˈsteɪn/","/səˈsteɪnz/","/səˈsteɪnd/","/səˈsteɪnɪŋ/"]/US /["/səˈsteɪn/","/səˈsteɪnz/","/səˈsteɪnd/","/səˈsteɪnɪŋ/"]/

Definition

to provide enough of what somebody/something needs in order to live or exist

In simple words: To keep something going or maintain it.

Examples

  • We must find ways to sustain our natural resources for the future.
  • The athlete was able to sustain a high level of performance throughout the competition.
  • Her enthusiasm for the project helped to sustain the team's motivation.
  • He struggled to sustain his focus during the long lecture.
  • To sustain economic growth, we need innovative solutions.
  • The funding was crucial to sustain the organization's operations.
  • They aim to sustain the tradition of craftsmanship in their products.
  • It is important to sustain a balanced diet for long-term health.

Usage notes

Use 'sustain' in contexts about keeping something alive or supporting it over time. It can be formal when discussing topics like environmental issues or less formal in conversations about personal interests.

Grammar pattern

sustain + object

Memory hint

Think of 'sustain' as 'stay sane' — imagine maintaining your sanity in a stressful situation.

Collocations

  • no longer
  • barely
  • indefinitely
  • be able to
  • can
  • be unable to

Synonyms

  • suffer
  • uphold
  • bear
  • uphold

Antonyms

  • neglect
  • abandon
  • cease

Common mistakes

  • 'Sustain' is often confused with 'sustained' as a past form.
  • Learners sometimes forget to add an object after 'sustain'.
  • 'Sustain' is misused when referring to temporary situations, instead of ongoing support.