In terms, -ism (CR:11) (LH:11) (TL:22) is a noun suffix, meaning referring to a distinctive doctrine, cause, theory, or practice; set of principles, describing a subject, "state, condition, property, or attribute related to a particular subject, view, philosophy, or categorization. Related to a thing not yet precisely defined; gray area subject or one in a new or testing realm of knowledge solidification.
The following are quotes:
- “Isms in my opinion are not good. A person should not believe in an ism.”
- – John Hughes (1986), Ferris Bueller’s Day Off (character: Ferris) 
- Merriam-Webster Collegiate Dictionary, 2000.
- Ferris Bueller’s Day Off – WikiQuote.
- -ism – Hmolpedia 2020.