1. plural of inbox; containers or designated areas where incoming mail or messages are placed
Usage: commonly used in email and digital communication contexts
2. plural of inbox; physical trays or compartments on a desk or in an office for receiving documents or items
Usage: traditional office usage

Examples

• She checked all three of her email inboxes before leaving the office.
• The administrative assistant organized the paper inboxes on each desk.
• My work and personal inboxes are getting too full of unread messages.
• Please place all completed forms in the inboxes by the reception desk.
• He had over 500 unread emails across his various inboxes.
• The inboxes on the filing cabinet were labeled by department.