Difference between Maintains and Sustain

MAINTAINS vs SUSTAIN: NOUN

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

To keep in existence; maintain, continue, or prolong.
To keep up (a joke or assumed role, for example) competently.
To supply with necessities or nourishment; provide for.
To support the spirits, vitality, or resolution of; encourage.
To support from below; keep from falling or sinking; prop.
To bear up under; withstand.
To experience or suffer.
To affirm the validity of.
Hence, to keep from sinking, as in despondence, or the like; to support.
To keep from falling; to bear; to uphold; to support.
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 suffer; to bear; to undergo.
To aid, comfort, or relieve; to vindicate.
To maintain; to keep alive; to support; to subsist; to nourish.

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.
Carry the weight of
Be the physical support of

Believes, Insists, Retains, Asseverate, Keep up, Wield, Observe, Hold, Defend, Exert, Assert, Uphold, Keep, Preserve, Sustain

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

Publishes, Retained, Sustains, Provides, Operates, Establishes, Emphasizes, Insists, Retains, Observe, Hold, Assert, Uphold, Keep, Preserve

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

Maintains current documentation and attests to correct billing.
Maintains an awareness of developments in the industry.
Inflatable Boat Repairs in Pretoria maintains its integrity.
Richard Morgan deeds office maintains and safeguards number!
Industry maintains a list of qualifying agricultural products.
Each child field maintains that singular responsibility, while the parent form maintains the validation, submission, and rendering of children.
Multidatabase System maintains only global schema and the local component database system actually maintains all user data.
Maintains guest room key storage, and maintains and supervises access to safe deposit boxes.
Office maintains official county maps and perpetually maintains original government survey section corners, the basis for all property boundaries.
Maintains control over expenditures to ensure that the EDC maintains a sound financial position.

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.