Clash \Clash\, v. i. [imp. & p. p. {Clashed}; p. pr. & vb. n. {Clashing}.] [Of imitative origin; cf. G. klatschen, Prov. G. kleschen, D. kletsen, Dan. klaske, E. clack.] 1. To make a noise by striking against something; to dash noisily together. 2. To meet in opposition; to act in a contrary direction; to come onto collision; to interfere. However some of his interests might clash with those of the chief adjacent colony. --Palfrey.