n.
1.an onerous or difficult concern
2.weight to be borne or conveyed
3.the central meaning or theme of a speech or literary work
4.the central idea that is expanded in a document or discourse burden v.
1.weight down with a load
2.impose a task upon, assign a responsibility to
Idiom of the Day
upset the applecart
to ruin or spoil a plan or idea
"Try not to upset the applecart as we have spent a lot of time working on this project."