plural of sustainer

The act of sustaining something.

A person or thing that sustains. / (aeronautics) A rocket engine that remains with a spacecraft during its ascent after the separation of the booster engines.

Third-person singular simple present indicative form of sustain

plural of sustain

Able to be sustained. / Able to be produced or sustained for an indefinite period without damaging the environment, or without depleting a resource; renewable.

(music) A mechanism which can be used to hold a note, as the right pedal on a piano.

(transitive) To maintain, or keep in existence. / (transitive) To provide for or nourish. / (transitive) To encourage or sanction (something). / (transitive) To experience or suffer (an injury, etc.).

A renewable energy source.

simple past tense and past participle of sustain