noun
mail service; postal service
Refers to the business or operations of handling mail, including collection, transport, and delivery.
郵便業務は土曜日も行われている。
Mail service is also carried out on Saturdays.
この地域では郵便業務が遅れている。
Mail service is delayed in this area.
Compound of 郵便 (mail, postal) and 業務 (business, operations).