fanatic
Translation
zealot, extremist, enthusiast
Examples
He is a religious fanatic.
He is a religious fanatic.
She is a real fitness fanatic.
She is a real fitness fanatic.
Grammar Patterns
a ((...)) fanatic someone with an obsessive interest in (sth.) She is a real fitness fanatic.
Similar Words
Synonyms: zealot, extremist, enthusiast
Etymology
From Latin 'fanaticus' meaning 'of a temple, divinely inspired', from 'fanum' (temple).
Memory Tips
A 'fanatic' is a more extreme version of a 'fan'. While 'fan' is positive, 'fanatic' often has a negative connotation.