Inbox (noun)
A container in which papers to be dealt with are put.
Inbox (noun)
An electronic folder serving the same purpose.
Inbox (noun)
The aggregate of items that demand one’s attention or effort.
“The kids, my ex, my parents, the job, bills — my inbox is full.”
Inbox (verb)
To put (something) in someone’s inbox.
“I just inboxed you the presentation.”
Inbox (verb)
To communicate with (a person) by writing to their electronic inbox.
Imbox (verb)
To enclose in a box.
Wiktionary