noun
binder; ring binder
A stationery item with rings or clips for holding loose sheets of paper.
書類をバインダーに綴じる。
I file the documents in a binder.
調査員はバインダーに用紙を挟んでメモを取った。
The surveyor clipped a form onto a clipboard and took notes.
noun
binder; binding machine
Agricultural machine that cuts and ties grain stalks into bundles. Less common in everyday conversation.
昔はバインダーで稲を刈って束ねていた。
In the past, they used a binder to cut and bundle rice stalks.