A Japanese ‘no vacancy’ button (満); shows full, no rooms/seats left, or at capacity.

A Japanese button for reserved (指); indicates reserved seats, bookings, or designated areas.

A Japanese ‘open for business’ button (営); indicates a shop is open or operating hours.

A seat or reserved spot—tickets, bookings, or sitting down.

A Japanese ‘secret’ button (秘); marks confidential info, spoilers, or keep-it-secret.