noun
Used in technical, computing, or formal contexts for the act of inserting something into a sequence, document, or system.
データベースへのインサーション処理が完了しました。
The insertion process into the database has been completed.
そうにゅう is the native Japanese equivalent, more common in everyday and general technical contexts. インサーション is a loanword used in specific fields like computing or linguistics.
Borrowed from English 'insertion'.