Difference between Sustainer and Maintainer

What is the difference between Sustainer and Maintainer?

Sustainer as a noun is one that sustains. while Maintainer as a noun is someone who keeps or upholds something.

Part of speech: noun

Definition: One that sustains.

Part of speech: noun

Definition: Someone who keeps or upholds something.A person who does maintenance work.A device used to keep teeth in a given position.

We hope you now know whether to use Sustainer or Maintainer in your sentence.