I feel like many people don't use the term feudalism quite correctly... working for a powerful person describes many systems, not just feudalism. Manoralism is

I feel like many people don't use the term feudalism quite correctly... working for a powerful person describes many systems, not just feudalism. Manoralism is a key characteristic of feudalism, and is generally the consequence of failure of trade. Trade and strong "middle classes"/"cities" were the key to many less-feudal societies, from Rome to modern day. I am also pretty sure ancient (pre-classical) world with its massive centralized empires do not count as feudal, or otherwise the term becomes so broad as to be meaningless...