(~s)
1.
A ~ is something unusual or interesting that happens by chance.
By a tantalising ~ of fate, the pair have been drawn to meet in the first round of the championship...
N-COUNT: usu with supp, N of n, adj N
2.
A ~ is a habit or aspect of a person’s character which is odd or unusual.
Brown was fascinated by people’s ~s and foibles.
N-COUNT