expression, suru verb (irregular)
pretend something didn't happen; put something behind one; forgive and forget
Used when someone deliberately treats a past event as if it never occurred, often to move on or forgive. Can be used for personal matters or in social contexts.
昨日の喧嘩はなかったことにしよう。
Let's pretend yesterday's fight never happened.
彼は過
He put his past failures behind him and started a new job.
その約束はなかったことにしてください。
Please forget about that promise.