1. He who or that which sustains.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• austainer,
• zustainer,
• xustainer,
• dustainer,
• eustainer,
• wustainer,
• systainer,
• shstainer,
• sjstainer,
• sustaoner,
• sutainer,
• susainer,
• sustiner,
• sustanier,
• susteiner,
• Fuscaine,
• sutaner,
• sustanor,
• sutainor,
• Fushiene

• sustained,
• suction,
• sustainment,
• sustain,
• sustentation,
• sustainable.

The adjective form of the word "sustainer" is "sustaining".

The plural of the "sustainer" can be the "sustainers".

The singular of the "sustainer" can be the "sustainer".