noun, noun or participle which takes 'suru', transitive verb
resend; retransmit
Used for sending something again, such as an email, data, or a physical item. Common in business and technical contexts.
メールを再送してください。
Please resend the email.
データの再送に時間がかかった。
Retransmitting the data took time.
Compound of 再 (sai, 'again') and 送 (sō, 'send'). The reading is on'yomi, and the word follows standard Sino-Japanese word formation.