also: わすれもん
noun
lost article; thing left behind
Refers to an item that was accidentally left somewhere and is now missing. Often used in contexts like train stations, lost-and-found, or personal anecdotes.
電車に忘れ物をしてしまった。
I left something on the train.
忘れ物は駅の窓口で預かって
Lost items are kept at the station counter.
noun
leaving something behind; forgetting something
Focuses on the act of forgetting or leaving something behind, rather than the object itself. Often used with verbs like する or ないように.
忘れ物がないか、もう一度確認してください。
Please check again to make sure you haven't left anything behind.
忘れ物が多いので気をつけている。
I often forget things, so I'm being careful.