sustain

Sustain means to support something or keep it going. If you get hungry in the mid-afternoon, you might try snacking to sustain your energy through dinner.

Beams and rafters sustain a roof––they keep it up. If you sustain a conversation over the course of hours, you keep it going during that time. If you sustain an injury, it means you are injured. If you sustain an interest in what you're studying, it means that you're just as excited about the subject after studying as you are when you began.

Definitions of sustain
1

v lengthen or extend in duration or space

“We sustained the diplomatic negotiations as long as possible”
Synonyms:
keep up, prolong
Types:
continue, keep, keep on, retain
allow to remain in a place or position or maintain a property or feature
Type of:
bear on, carry on, continue, preserve, uphold
keep or maintain in unaltered condition; cause to remain or last

v supply with necessities and support

“She alone sustained her family”
“The money will sustain our good cause”
Synonyms:
keep, maintain
Types:
patronage
support by being a patron of
reseed
maintain by seeding without human intervention
carry
keep up with financial support
Type of:
have, have got, hold
have or possess, either in a concrete or an abstract sense

v provide with nourishment

“We sustained ourselves on bread and water”
Synonyms:
nourish, nurture
Types:
carry
be able to feed
Type of:
cater, ply, provide, supply
give what is desired or needed, especially support, food or sustenance

v be the physical support of; carry the weight of

Synonyms:
hold, hold up, support
Types:
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scaffold
provide with a scaffold for support
block
support, secure, or raise with a block
carry
bear or be able to bear the weight, pressure,or responsibility of
chock
support on chocks
buoy, buoy up
keep afloat
pole
support on poles
bracket
support with brackets
underpin
support from beneath
prop, prop up, shore, shore up
support by placing against something solid or rigid
truss
support structurally
brace
support by bracing
bolster
prop up with a pillow or bolster
tread
brace (an archer's bow) by pressing the foot against the center

v admit as valid

“The court sustained the motion”
Type of:
acknowledge, admit
declare to be true or admit the existence or reality or truth of

v establish or strengthen as with new evidence or facts

Synonyms:
affirm, confirm, corroborate, substantiate, support
Antonyms:
contradict, negate
prove negative; show to be false
Types:
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back, back up
establish as valid or genuine
vouch
give supporting evidence
verify
confirm the truth of
demonstrate, establish, prove, shew, show
establish the validity of something, as by an example, explanation or experiment
document
support or supply with references
validate
prove valid; show or confirm the validity of something
check, check off, mark, mark off, tick, tick off
put a check mark on or near or next to
ascertain, assure, check, control, ensure, insure, see, see to it
be careful or certain to do something; make certain of something
check
verify by consulting a source or authority
prove oneself
show one's ability or courage
prove
prove formally; demonstrate by a mathematical, formal proof
source
specify the origin of
contradict, negate
prove negative; show to be false
stultify
prove to be of unsound mind or demonstrate someone's incompetence

v undergo (as of injuries and illnesses)

Synonyms:
get, have, suffer
have
suffer from; be ill with
Types:
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break down, collapse
collapse due to fatigue, an illness, or a sudden attack
cramp
suffer from sudden painful contraction of a muscle
break up, collapse, crack, crack up, crock up
suffer a nervous breakdown
drop like flies
rapidly collapse, die, or drop out in large numbers
fall over, go over
fall forward and down
Type of:
experience, get, have, receive
go through (mental or physical states or experiences)

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