clash
A. -noun
1. (=noise)   estruendo (m), fragor (m)
a. [of cymbals] ruido (m) metálico
2. [of armies, personalities] choque (m)
(=conflict)   choque (m), conflicto (m)
(=confrontation) enfrentamiento (m)
b. [of interests, opinions] conflicto (m)
c. [of dates, programmes] coincidencia (f)
d. [of colours] desentono (m)
·a clash with the police
·un choque or un enfrentamiento con la policía
·a clash of wills
·un conflicto de voluntades
B. -transitive verb
[+cymbals, swords] golpear
C. -intransitive verb
1. [personalities, interests] oponerse, chocar
[colours] desentonar
[dates, events] coincidir
2. (=disagree) estar en desacuerdo
(=argue) pelear (military) encontrarse, enfrentarse (with con)