People and their professions:
* Artist
* Journalist
* Scientist
* Pianist
* Chemist
* Biologist
* Historian
* Physicist
* Mathematician
* Politician
* Economist
* Activist
* Therapist
* Dentist
* Accountant
* Typist
* Tourist
* Receptionist
* Linguist
* Analyst
* Statistician
* Technologist
* Socialist
* Capitalist
Ideologies and Beliefs:
* Realist
* Idealist
* Pessimist
* Optimist
* Feminist
* Communist
* Individualist
* Humanist
* Materialist
* Atheist
* Buddhist
* Christian
* Muslim
Other:
* Agonist
* Antagonist
* Aesthete
* Cynic
* Fatalist
* Purist
* Traditionalist
* Minimalist
* Individualist
* Exhibitionist
This is just a small sample of the many words ending in "-ist." The suffix "-ist" is commonly used to indicate someone who adheres to a particular belief or practice, or someone who performs a particular profession.