Definitions

1. adverb

at some indefinite or unspecified time; at some time

“She visited me somewhile back, but I’ve forgotten her name.”

2. noun

a period of time, especially one that is indefinite or unspecified

“Somewhile during the war, our family’s living situation became quite difficult.”

3. adverb

at some time past

“I used to love playing guitar somewhile ago.”