The meaning of freak is someone or something that differs markedly from what is usual or standard A person or animal that is physically abnormal How to use freak in a sentence.
A thing, person, animal, or event that is extremely unusual or unlikely, and not like any other… A very strange or unusual person To become or to make (someone) insane or out of control, as a result of being frightened, wildly excited, or high on drugs
Mom'll freak if she ever finds out we threw that party when she was out of town. An abnormal phenomenon or product or unusual object A person or animal on exhibition as an example of a strange deviation from nature A sudden and apparently causeless change
There are 21 meanings listed in oed's entry for the word freak, two of which are labelled obsolete, and nine of which are considered offensive and derogatory See ‘meaning & use’ for definitions, usage, and quotation evidence. An enthusiast, or person who has an obsession with, or extreme knowledge of, something He owns every games console of the last ten years.
Weirdo is slang for freak, and regular is its antonym. If you refer to someone as a freak, you mean that they are physically abnormal in some way This use could cause offence.