W: (n) compulsion [Related to: compel] (using force to cause something to occur) "though pressed into rugby under compulsion I began to enjoy the game"; "they didn't have to use coercion"
W: (n) obligation [Related to: oblige, obligate] (the social force that binds you to the courses of action demanded by that force) "we must instill a sense of duty in our children"; "every right implies a responsibility; every opportunity, an obligation; every possession, a duty"- John D.Rockefeller Jr