postal service   (TTS Sound)

The postal_service has 1 Senses.

• mail service, mail, post, postal service
• 郵便
• the system whereby messages are transmitted via the post office; "the mail handles billions of items every day"; "he works for the United States mail service"; "in England they call mail `the post'"
• メッセージが郵便局を通して送られるシステム