burden - noun

an onerous or difficult concern

weight to be borne or conveyed

the central meaning or theme of a speech or literary work

the central idea that is expanded in a document or discourse

burden - verb

• weight down with a load
• impose a task upon, assign a responsibility to

burden - thesaurus

burthen   charge   core   effect   encumbrance   essence   gist   incumbrance   load   loading   onus   saddle   weight