Exception
Definition 1 of 5
Pro Tip 1/2
Not Always Negative
Exception doesn't always suggest something bad; it can simply indicate difference from the norm. She's exceptionally skilled, the exception in a group of novices.
Pro Tip 2/2
Common Expression
The phrase 'the exception that proves the rule' means a rare exception supports the general rule. The library is usually quiet, but today's noise is the exception that proves the rule.