Definitions

1. verb

to be or make a harsh or unpleasant sound; to be out of harmony or agreement

“The clashing notes dissonated and created an unpleasant atmosphere.”

2. verb (transitive)

to bring or throw into a state of dissonance

“The musician’s harsh note dissonated the entire melody.”

3. verb (intransitive)

to fall or become dissonant

“The singer’s voice began to dissonate as she hit the high note.”