burden vs idea

burden and idea both are nouns.

Word	Noun	Adjective	Verb	Adverb
burden	Yes	No	Yes	No
idea	Yes	No	No	No

As nouns, idea is a hypernym of burden; that is, idea is a word with a broader meaning than burden:

Other hypernyms of burden include thought.

burden (noun)	idea (noun)
weight to be borne or conveyed	the content of cognition; the main thing you are thinking about
the central idea that is expanded in a document or discourse	your intention; what you intend to do
an onerous or difficult concern	an approximate calculation of quantity or degree or worth
the central meaning or theme of a speech or literary work	a personal view
	(music) melodic subject of a musical composition

burden (verb)	idea (verb)
impose a task upon, assign a responsibility to
weight down with a load