removable floorboard; trap door
Refers to a floorboard that can be lifted, often for access to a crawl space, storage, or a hidden area. Common in traditional Japanese architecture.
When you lift the removable floorboard in the kitchen, there is a storage space underneath.
In the hallway of the old inn, there are several trap doors for inspection.
Standard kanji spelling for a removable floorboard or trap door.
Variant spelling using 上げる, emphasizing the action of lifting.
Rarely used kanji form; 揚げる can also mean 'to lift' but is less common for this word.
A variant spelling of 上げ板, from 上げる “to raise” and 板 “board,” referring to a floorboard made to be lifted or removed.