'Tis quite simple. Post a word ending in ism and define that word. Post has to have some relevance to the post above. I'll start. Militarism-A military state or condition; reliance on military force in administering government; a military system. The spirit and traditions of military life.
Surrealism- a cultural movement that began in the early 1920s, and is best known for the visual artworks and writings of the group members.
Zomg Diffussionism-the anthropological theory that similarities in tools, practices, or other features between cultures result from their being spread from one culture to another rather than being arrived at independently. I know, has no relevance.
Absurdism - a philosophy stating that the efforts of humanity to find inherent meaning in the universe ultimately fail
Antidisestablishmentarianism- a political position that originated in nineteenth-century Britain in opposition to proposals for the disestablishment of the Church of England, that is, to remove the Anglican Church's status as the state church of England, Ireland and Wales.
Apocalypticism - the religious belief that there will be an apocalypse, a term which originally referred to a revelation of God's will