up ‧ hol ‧ ster ‧ y /ʌpˈhəʊlst ə ri $ -ˈhoʊl-/ BrE AmE noun [uncountable]
[ Date: 1600-1700 ; Origin: upholster 'dealer in small goods, upholsterer' (15-18 centuries) , from uphold ]
1 . material used to cover chairs
2 . the process of covering chairs with material