vexation vs burden

vexation and burden both are nouns.

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

As nouns, burden is a hyponym of vexation; that is, burden is a word with a more specific, narrower meaning than vexation:

Other hyponyms of vexation include bugaboo, encumbrance, incumbrance, load, onus, business.

vexation (noun)	burden (noun)
the act of troubling or annoying someone	weight to be borne or conveyed
something or someone that causes anxiety; a source of unhappiness	the central idea that is expanded in a document or discourse
anger produced by some annoying irritation	an onerous or difficult concern
the psychological state of being irritated or annoyed	the central meaning or theme of a speech or literary work

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