Meaning of the word erstwhile in English

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

erstwhile

US /ˈɝːst.waɪl/
UK /ˈɜːst.waɪl/

Adjective

former; in the past

Example:
The company's erstwhile CEO was honored at the event.
He visited his erstwhile home after many years.