- 1(informal) a person with a very strong interest in a particular subject a health/fitness/jazz, etc. freak see also control freak
- 2(disapproving) a person who is considered to be unusual because of the way they behave, look, or think She was treated like a freak because she didn't want children. He's going out with a real freak.
- 3(also freak of nature) (sometimes offensive) a person, an animal, a plant, or a thing that is not physically normal
- 4a very unusual and unexpected event By some freak of fate they all escaped without injury.