Definition of "Clash" :

noun: a minor short-term fight

noun: a loud resonant repeating noise

noun: a state of conflict between persons

noun: a state of conflict between colors

"Her dress was a disturbing clash of colors."

verb: disagree violently

"We clashed over the new farm policies."

verb: crash together with violent impact

"Two meteors clashed."

verb: be incompatible; be or come into conflict

"These colors clash."