Philosophical/Political Ideologies:
* Capitalism: An economic system based on private ownership and free markets.
* Communism: A political and economic system based on common ownership of the means of production.
* Socialism: A political and economic theory advocating for social ownership of the means of production.
* Fascism: A far-right, authoritarian, and nationalist political ideology.
* Feminism: Advocacy for women's rights on the grounds of political, economic, and social equality.
* Liberalism: A political philosophy emphasizing individual rights and freedoms.
* Conservatism: A political philosophy emphasizing tradition and gradual change.
* Nihilism: The belief that life is meaningless and without inherent value.
* Existentialism: A philosophical movement emphasizing individual existence, freedom, and responsibility.
Other Concepts:
* Chauvinism: Excessive patriotism or loyalty to one's country.
* Racism: Prejudice, discrimination, or antagonism directed against a person or people on the basis of their membership in a particular racial or ethnic group.
* Sexism: Prejudice, discrimination, or antagonism directed against a person or people on the basis of their sex.
* Realism: The attitude or practice of accepting a situation as it is and being prepared to deal with it accordingly.
* Idealism: The practice of forming or pursuing ideals, especially unrealistically.
* Pessimism: A tendency to see the worst aspect of things or believe that the worst will happen.
* Optimism: A tendency to believe that good things will happen.
* Atheism: Disbelief or lack of belief in the existence of God or gods.
* Monotheism: The belief in the existence of one God.
* Polytheism: The belief in or worship of more than one god.
* Heroism: Great courage in the face of danger, especially when considering the possibility of death.
* Patriotism: The quality of being patriotic; devotion to and vigorous support for one's country.
* Nationalism: Patriotic feeling, principles, or efforts.
* Terrorism: The unlawful use of violence and intimidation, especially against civilians, in the pursuit of political aims.
Other:
* Absurdism: The belief that the universe is inherently meaningless and that human existence is absurd.
* Barbarism: Uncivilized or cruel behavior.
* Criticism: The analysis and judgment of the merits and faults of a work of art, literature, music, etc., or a person's behavior or character.
* Mechanism: The principles and methods of a particular process, system, or machine.
* Organism: A living thing that has an organized structure and that can perform the activities necessary for life.
* Fanaticism: Excessive enthusiasm or zeal, especially for a cause, belief, etc.
This is just a sample. There are many more words with the suffix "-ism" in the English language.