used in expressions that convey frustration and futility, such as 無奈|无奈[wu2 nai4] and 莫可奈何|莫可奈何[mo4 ke3 nai4 he2] (literary) / used for its phonetic value in writing foreign words
to walk / to go / to run / to move (of vehicle) / to visit / to leave / to go away / to die (euph.) / from / through / away (in compound verbs, such as 撤走[che4 zou3]) / to change (shape, form, meaning)