- Sustain is defined as to support something or to endure a trial or hardship.
- An example of sustain is for a foundation to support the house.
- An example of sustain is to survive days without food or water.
sustain definition by Webster's New World
- to keep in existence; keep up; maintain or prolong: to sustain a mood
- to provide for the support of; specif., to provide sustenance or nourishment for
- to support from or as from below; carry the weight or burden of
- to strengthen the spirits, courage, etc. of; comfort; buoy up; encourage
- to bear up against; endure; withstand
- to undergo or suffer (an injury, loss, etc.)
- to uphold the validity or justice of: to sustain a verdict
- to confirm; corroborate
Origin: Middle English susteinen ; from Old French sustenir ; from Classical Latin sustinere ; from sus- (see sub-), under plush tenere, to hold (see thin)
sustain definition by American Heritage Dictionary
transitive verb sus·tained, sus·tain·ing, sus·tains
- To keep in existence; maintain.
- To supply with necessities or nourishment; provide for.
- To support from below; keep from falling or sinking; prop.
- To support the spirits, vitality, or resolution of; encourage.
- To bear up under; withstand: can't sustain the blistering heat.
- To experience or suffer: sustained a fatal injury.
- To affirm the validity of: The judge has sustained the prosecutor's objection.
- To prove or corroborate; confirm.
- To keep up (a joke or assumed role, for example) competently.
Origin: Middle English sustenen, from Old French sustenir, from Latin sustinēre : sub-, from below; see sub- + tenēre, to hold; see ten- in Indo-European roots.
- sus·tainˌa·bilˈi·ty noun
- sus·tainˈa·ble adjective
- sus·tainˈer noun
- sus·tainˈment noun
sustain - Legal Definition