Noun: unison yoo-ni-sun
- (music) two or more sounds or tones at the same pitch or in octaves
"singing in unison"
- Occurring together or simultaneously
"the two spoke in unison"
- Corresponding exactly
"marching in unison"
Derived forms: unisons
Type of: accord, agreement, coincidence, concert, concurrence, conjunction, co-occurrence, sound
Encyclopedia: Unison, Virginia