leaving on; leaving engaged
Describes the state of having left something on or engaged, such as a light, TV, or a key in a lock. Often used in complaints or reminders.
See also: っぱなし
I fell asleep with the TV left on.
Please don't leave the key in the lock.
Kanji spelling using 付ける; less common but still encountered.
Kanji spelling using 点ける, specifically for turning on lights or appliances.
Rare variant using the kanji 放.
Rare variant using 点け and 放.
Formed from the verb つける (to turn on, to engage) and the suffix っぱなし (leaving something as is).