definition of
backing

[1] #1 backing n. [backup, championship, patronage] the act of providing approval and support; "his vigorous backing of the conservatives got him in trouble with progressives". wn

[2] #2 backing n. [mount] something forming a back that is added for strengthening. wn

[3] #3 backing n. [support, financial support, funding, financial backing] financial resources provided to make some project possible; "the foundation provided support for the experiment". wn