out–box

1 ENTRIES FOUND:
out–box /ˈaʊtˌbɑːks/ noun
plural out–boxes
out–box
/ˈaʊtˌbɑːks/
noun
plural out–boxes
Britannica Dictionary definition of OUT–BOX
[count]
1 
US : a box or other container on a desk in which letters, notes, etc., that are being sent from the desk are placed
— called also (British) out tray
— see picture at office; compare in-box
2 
computers : a computer folder that holds e-mail messages you have not yet sent