Translation guide
A low upholstered seat or footstool, often without arms or a back.
The learner wants to refer to a piece of furniture used as a seat or footrest, typically padded and without arms or a back.
The most direct loanword from English, widely understood in modern Japanese. Refers specifically to a low, padded footstool or seat.
I placed an ottoman in front of the sofa.
A loanword meaning 'footstool'. More specific to the footrest function, but can overlap with ottoman.
That footstool is soft and comfortable.
A native Japanese compound meaning 'footrest platform'. Less common and more descriptive, used in furniture catalogs or instructions.
This footrest is foldable.