Difference between Sustain and Prolong

SUSTAIN vs PROLONG: NOUN

One who or that which upholds; a sustainer.
A capacity of a musical instrument to continue the resounding of a note or tone.
A mechanism which can be used to hold a note, as the right pedal on a piano.
One who, or that which, upholds or sustains; a sustainer.

A prolongation: used specifically of an extension or elongated mouthpiece or chamber on retorts for the manufacture of zinc products or for the handling of other oxids which are volatile at high temperatures.

To support from below; keep from falling or sinking; prop.
To bear up under; withstand.
To experience or suffer.
To affirm the validity of.
To support the spirits, vitality, or resolution of; encourage.
To supply with necessities or nourishment; provide for.
To keep up (a joke or assumed role, for example) competently.
To keep in existence; maintain, continue, or prolong.
To prove; to establish by evidence; to corroborate or confirm; to be conclusive of.
To allow the prosecution of; to admit as valid; to sanction; to continue; not to dismiss or abate.
To keep from falling; to bear; to uphold; to support.
Hence, to keep from sinking, as in despondence, or the like; to support.
To maintain; to keep alive; to support; to subsist; to nourish.
To aid, comfort, or relieve; to vindicate.
To suffer; to bear; to undergo.

To hold up; bear up; uphold; support.
To hold suspended; keep from falling or sinking: as, a rope sustains a weight; to sustain one in the water.
To keep from sinking in despondency; support.
To maintain; keep up; especially, to keep alive; support; subsist; nourish: as, provisions to sustain a family or an army; food insufficient to sustain life.
To support in any condition by aid; vindicate, comfort, assist, or relieve; favor.
To endure without failing or yielding; bear up against; stand: as, able to sustain a shock.
To suffer; have to submit to; bear; undergo.
To admit or support as correct or valid; hold as well founded: as, the court sustained the action or suit.
To support or maintain; establish by evidence; bear out; prove; confirm; make good; corroborate: as, such facts sustain the statement; the evidence is not sufficient to sustain the charge.
In music, of tones, to prolong or hold to full time-value; render in a legato or sostenuto manner.
See living.
8 and To sanction, approve, ratify, justify.
To sustain one's self; rest for support.
To bear; endure; suffer.
Be the physical support of
Carry the weight of

Keep up, Have, Corroborate, Confirm, Get, Hold, Suffer, Affirm, Support, Substantiate, Keep, Prolong, Nourish, Nurture, Maintain

Prorogue, Expand, Maintain, Drag, Delay, Continue, Renew, Postpone, Perpetuate, Lengthen, Draw out, Keep up, Sustain, Extend, Protract

Achieve, Survive, Hold up, Have, Corroborate, Confirm, Get, Hold, Suffer, Affirm, Support, Substantiate, Keep, Prolong, Nourish

Diminish, Intensify, Shorten, Stretch, Increase, Expand, Drag, Delay, Continue, Renew, Perpetuate, Lengthen, Draw out, Extend, Protract

Kindle Worlds are unlikely to nurture or sustain.
Does not provide magical protection or mana sustain.
Can a Pope Help Sustain Humanity and Ecology?
Can we use sustain damage in informal contexts?
Sustain a healthy workplace culture and increase productivity.
Use cooperative instructional styles to promote sustain friendships.
How do you sustain such immaculate facial hair?
New Hampshire to sustain communities and the economy.
May all your love and memories sustain you.
Custodianmay sustain or might sustain resulting directly or indirectly from this investment.

These exchanges serve to prolong interactions with others.
Hospice seeks neither to shorten nor prolong life.
Meticore results and decide to prolong its use.
Island where by you can prolong your remain.
Can we prolong life with a new treatment?
Well, I do not want to prolong this.
Coadministration of pazopanib and other drugs that prolong the QT interval is not advised; pazopanib has been reported to prolong the QT interval.
Make sense prolong your leave normally expires to prolong your leave due to any it.
And so all we did in the end, was prolong the civil war, was prolong the misery.
Health care providers now have the means to prolong life and in some cases prolong the dying process.