past participle of tabn. a short strip of material attached to or projecting from something in order to facilitate opening or identifying or handling it
(tab 的过去分词) n. 制表(键), 搭襻, 标号, 调整片, (易拉罐)拉环, 帐单, 标签, 制表符[计] 标签, 制表符, TAB键