Prefix used in loanword compounds like アフターケア (aftercare) or アフターサービス (after-sales service). Not used as a standalone word.
This product comes with after-sales service.
after-hours socializing; entertaining a hostess outside the club
Colloquial noun referring to taking a hostess or host out for drinks or a meal after their shift at a club. Often used in the nightlife industry.
He often goes out for after-hours socializing with girls from the hostess club.
after five; after-hours; private time after work
follow-up service; after-sales follow-up