What does 送信 mean?
送信 is a Japanese noun meaning “transmission; sending” in English. It is written as 送信 in kanji, そうしん in hiragana, and soushin in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
どの記者も、自分の書いた記事をただちに送信した。
Every reporter sent his stories with the least possible delay.