address
air
airmail
airplane
blank
business
card
collect
consignee
contact
copy
currency
empty
enclose
envelope
express
fly
inform
information
international
invitation
letter
mail
message
note
notification
office
paper
parcel
philatelic
philately
plane
post
postage
postal
postcard
receiver
recipient
secretarial
secretary
send
stamp
stationery
travel
value
white
write
writing