1.
lost item; something one has lost
An item the owner has misplaced and whose whereabouts are unknown. Compare with 落とし物 (a dropped item, typically found by someone else).
失くし物をした。
I lost something.
失くし物が見つかった。
The lost item turned up.
鍵や財布など、失くし物が多くて困っている。
I've been losing a lot of things lately — keys, wallets — and it's becoming a problem.
Compound of 失くす (to lose) + 物 (thing). The connecting い of the verb stem is dropped.
COMMON COLLOCATIONS:
- 失くし物をする: to lose something
- 失くし物が見つかる: a lost item is found
- 失くし物防止タグ: lost-item prevention tag (e.g., AirTag)
SIMILAR WORDS:
- 落とし物: a dropped/found item — emphasis on having been dropped, often found and turned in by others. Lost-and-found offices are 落とし物係, not 失くし物係.
- 忘れ物: a forgotten item — left behind somewhere (in a store, on a train); the owner usually knows where they left it.