The words defunct, vanish, and die all have a loose meaning connected to no longer existing. The words defunct and vanish are synonyms because they both mean to disappear. However defunct is used as an adjective to describe the act disappearing whereas vanish is a verb that tells the action. The words vanish and die are synonyms for the same reason. They both mean to no longer exist in that moment or time. However they are slightly different when used in context. Typically a person who vanishes does not always die, but a person who dies also vanishes. Finally, the words defunct and die are synonyms because they both mean to cease existence. They are slightly different because the word die can be used when both a living and nonliving thing
