- (countable) When there is a similarity between things, they are the same in one or more ways.
- Synonym: likeness
- Antonym: difference
- There is a strong similarity between what happened here and what happened at the other schools.
- When you look at two groups of people, there is often more similarity than difference between them.
- The Indonesians have a style of music that bears a striking similarity to certain Indian music.