送信（そうしん、soushin）
- sending (message)

The Japanese word 送信 (そうしん, sōshin) means "transmission," "sending," or "submission." It generally refers to the act of sending or transmitting information, data, or a message from one place or person to another. This can apply to various contexts, from sending an email to transmitting radio signals. The core concept is the act of dispatching something for delivery.

⚫︎ メールを送信 Translation: Sending an email. ⚫︎ ファイルを送信する Translation: To send a file. ⚫︎ 電波を送信する Translation: To transmit radio waves.

送信 is a versatile verb and noun, used in various scenarios. ⚫︎ As a noun, it directly describes the action of sending. ⚫︎ As a verb, it usually takes the particle を (o) to indicate the object being sent. For example, メールを送信する (to send an email). ⚫︎ It is appropriate in formal and informal contexts.

⚫︎ The standard written form is 送信, using kanji. ⚫︎ The reading is そうしん in hiragana. ⚫︎ There is no katakana version commonly used for 送信. ⚫︎ The okurigana (hiragana attached to the kanji) is usually する (suru) when used as a verb to indicate "to send." So we say, 送信する。

⚫︎ 送る (okuru): To send (a broader term). ⚫︎ 発信する (hasshin suru): To transmit (a more technical term often used for communication or information). ⚫︎ 提出する (teishutsu suru): To submit (used when submitting documents or applications). ⚫︎ 送付する (sōfu suru): To send (especially for documents or physical items).

⚫︎ 受信 (jushin): Receiving, to receive. ⚫︎ 受け取る (uketoru): To receive. ⚫︎ ダウンロード (daunroodo): Download.

添付ファイルを送信するのを忘れました。 ・Translation: I forgot to send the attached file. ・Explanation: This sentence describes forgetting to send an attachment, a common scenario in email correspondence.

ボタンを押して、情報を送信してください。 ・Translation: Please press the button and submit the information. ・Explanation: This instruction tells the user to submit data using the button on the interface.

送信 is a compound word formed from two kanji: 送 (sō), which means "to send," and 信 (shin), which means "trust," "believe," or, in this context, "information" or "signal." Therefore, the word literally means "to send information" or "to send a signal."