tool-sharpener+[UK: tuːl ˈʃɑːp.nə(r)] [US: ˈtuːl ˈʃɑːrp.nər]
rubber [rubbers]+noun[UK: ˈrʌ.bə(r)] [US: ˈrʌ.bər]
rough-grinder+[UK: rʌf ˈɡraɪn.də(r)] [US: ˈrəf ˈɡraɪn.dər]
↑