便

piggybacking marketing; method of making sales by jumping on a bandwagon (like that of a boom, popularity, disaster, etc.)

postal money order

simple post office

to provide facilities; to administer to the convenience of

mail service; postal service

parcel

season's tidings; seasonal letter

going off to urinate together

mailman; postman; mail carrier; letter carrier

bidet toilet with a heated water function; warm-water washlet

toilet (from which night-soil may be collected)

portable toilet; porta-potty; portaloo

outhouse (from which night-soil may be collected); privy

Proverb

no news is good news

good appetite and good bowel movements; enjoying one's food and having regular stools

special post office

Idiomatic expression; Colloquial

like water off a duck's back; urine on a frog's face

postal transfer

mail from abroad; foreign mail; overseas mail

New Year's mail

simple, easy, and convenient

Organization name

Universal Postal Union

〒

(Japanese) postal symbol

postcard