burden vs signification

burden and signification both are nouns.

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

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

Other hypernyms of burden include import, meaning, significance.

burden (noun)	signification (noun)
weight to be borne or conveyed	the message that is intended or expressed or signified
the central idea that is expanded in a document or discourse
an onerous or difficult concern
the central meaning or theme of a speech or literary work

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