Definitions
1.verbTo maintain, or keep in existence."The city came under sustained attack by enemy forces."
2.verbTo provide for or nourish."provisions to sustain an army"
3.verbTo encourage or sanction (something).
4.verbTo experience or suffer (an injury, etc.)."The building sustained major damage in the earthquake."
5.verbTo confirm, prove, or corroborate; to uphold."to sustain a charge, an accusation, or a proposition"
6.verbTo keep from falling; to bear; to uphold; to support."A foundation sustains the superstructure; an animal sustains a load; a rope sustains a weight."
7.verbTo aid, comfort, or relieve; to vindicate.
8.adjectiveHeld continuously at a certain level.
9.adjectiveHeld at a certain pitch.