"ism" means "a distinctive practice, system, or philosophy, typically a political ideology or an artistic movement." (mac osx dictionary)
so many topics in philosophy (like rationalism) are labeled by patterns of thinking about ideas
see http://phrontistery.info/isms.html and http://en.wikipedia.org/wiki/-ism for good lists.
That is the correct spelling of the plural of philosophy, which is "philosophies."
The plural form of "philosophy" is spelled "philosophies."
The correct plural form is "Doctors of Philosophy."
Some common life philosophies that people follow include stoicism, existentialism, utilitarianism, and hedonism. These philosophies provide different perspectives on how to live a meaningful and fulfilling life.
Some of the most popular Hellenistic philosophies were Stoicism, Epicureanism, and Skepticism. Stoicism emphasized self-control, rationality, and acceptance of fate; Epicureanism focused on attaining happiness through the pursuit of pleasure and the avoidance of pain; Skepticism promoted the suspension of judgment and the questioning of all beliefs.
prism?
The suffix -ism usually signals a noun.
baptism
Federalism
A noun (like anything ending in -ISM).
Federalism
altruismatheismautismbaptismcommunismcriticismcubismcapitolismdwarfismeuphemismfundamentalismfatalismfeminismhedonismimpressionismindividualismjournalismliberalismmonotheismmaterialismmechanismorganismprofessionalismpluralismplagiarismpatriotismpuritanismprismracismromanticismrealismsymbolismtheism
Federalism
Federalism
Federalism
Federalism
colloquialism