leaving something out; leaving something as is
Describes the state of having left something somewhere without putting it away, often with a nuance of neglect or carelessness. Commonly used as a noun or in adverbial form 置きっぱなしで.
Please don't leave books lying on the desk.
The toys have been left out and not put away.
Standard kanji-kana spelling.
Variant using the kanji 放し; less common but still seen.
Compound of the verb stem 置き (from 置く, 'to put') and the suffix っぱなし, which indicates leaving something in a state or continuing an action. The suffix likely derives from the verb 放す (はなす, 'to release') or its classical form.