upholster /əˈpɒl.stə(ɹ)/noun 1verb 1forms 3 noun1 •(no longer used) An upholder, a dealer in secondhand furniture and clothes; an upholsterer; a tradesman who finishes furniture. verb1 •To fit padding, stuffing, springs, webbing and fabric covering to (furniture). formsupholstered · upholstering · upholsters