Meaning of the word sustainer in English

What does sustainer mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

sustainer

US /səˈsteɪnər/
UK /səˈsteɪnər/

Noun

a person or thing that provides sustenance or support

Example:
The government acts as a sustainer of the economy during crises.
She was the main sustainer of her family after her husband passed away.