noun
sender; mailer
Refers to the person who sends a letter, package, or similar item. Often used in postal contexts, forms, and return addresses.
Antonyms: 受取人
封筒の裏に差出人の住所を書いてください。
Please write the sender's address on the back of the envelope.
この荷物の差出人は誰ですか。
Who is the sender of this package?