#1 burden n. [load, encumbrance, incumbrance, onus] an onerous or difficult concern; "the burden of responsibility"; "that's a load off my mind". wn
#2 burden n. [load, loading] weight to be borne or conveyed. wn
#3 burden v. [burthen, weight, weight down] weight down with a load. wn
#4 burden v. [charge, saddle] impose a task upon, assign a responsibility to; "He charged her with cleaning up all the files over the weekend". wn
#5 burden n. [effect, essence, core, gist] the central meaning or theme of a speech or literary work. wn
vizzz