burden UK /ˈbɜːdn̩/US /ˈbɝdn̩/noun 13verb 2forms 5 noun13 •a difficult duty that someone has to take on and deal with •A heavy load.I know that this was Life,—the track Whereon with equal feet we fared; And then, as now, the day prepared The daily burden for the back. — 1850 •A cause of worry; that which is grievous, wearisome, or oppressive.Deaf, giddy, helpless, left alone, / To all my friends a burden grown. — 1710 •A theme, a core idea. •The total amount of toxins, parasites, cancer cells, plaque or similar present in an organism. •The capacity of a vessel, or the weight of cargo that she will carry. •A phrase or theme that recurs at the end of each verse in a folk song or ballad.Foot it featly here and there; / And, sweet sprites, the burden bear. — 1610 •A fixed quantity of certain commodities.A burden of gad steel is 120 pounds. •The proportion of ore and flux to fuel, in the charge of a blast furnace. •The drone of a bagpipe.BURDEN in some musical instruments, the Drone or Bass, and the pipe or string that plays it — 1740 •The distance between rows of blastholes parallel to the major free face (i.e. face of the excavation) •The tops or heads of stream-work which lie over the stream of tin. •(no longer used, rare) A birth.… that bore thee at a burden two fair sons. verb2 •To impose, as a load or burden; to lay or place as a burden (something heavy or objectionable).He was beginning to forget his burdening, despairing mood of a short while ago. — 1964 •(figurative) To encumber with a burden.to burden a nation with taxes formsburdened · burdening · burdeneth · burdens · burdenest