door frame; window frame; structural frame sections
Refers to the frame sections of a door or window that provide most of its structural integrity. A technical carpentry term.
The door frame is warped, so it's hard to close.
I replaced the window frame with a new one.
raised threshold; genkan step; entrance floor edge
Usually written in kana; the kanji 框 is rare and may not be widely recognized.
Kanji form is uncommon; learners will mostly encounter the kana spelling.
The origin is uncertain. The kanji 框 is used for its meaning 'frame' or 'enclosure', but the word itself is likely a native Japanese term.