Clevis :: Clevis (n.) A piece of metal bent in the form of an oxbow, with the two ends perforated to receive a pin, used on the end of the tongue of a plow, wagen, etc., to attach it to a draft chain, whiffletree, etc.; -- called also clavel, clevy..
Collectivism :: Collectivism (n.) The doctrine that land and capital should be owned by society collectively or as a whole; communism.