noun, noun or participle which takes 'suru', transitive verb
return to sender; send back
Used for returning items, mail, or goods to the original sender or source. Common in business, postal, and logistics contexts.
不良品はメーカーに返送してください。
Please return defective products to the manufacturer.
宛先不明で手紙が返
The letter was returned to sender due to an unknown address.