arrive
await
box
communication
container
correspondence
delivery
detail
door
e mail
envelope
flag
generic
got
hole
inbox
letter
letterbox
locked
mail
mailbox
mailman
message
metal
news
object
one
open
outbox
package
paper
post
postage
postal
postbox
red
retrieve
send
ship
shipment
single
snail mail
space
stamp
standard
studio
symbol
traditional