bur·den
[bur-dn]
–noun
1.that which is carried; load: a horse’s burden of rider and pack.
3.Nautical .
a.the weight of a ship’s cargo.
b.the carrying capacity of a ship.
4.Mining . overburden ( def. 3 ) .
5.Metallurgy . the minerals charged into a blast furnace or steelmaking furnace.
6.Accounting . overhead ( def. 6 ) .
–verb (used with object)
7.to load heavily.
8.to load oppressively; trouble.