What is the meaning of the word "balance"?

Definitions:

harmonious arrangement or relation of parts or elements within a whole (as in a design) noun
- in all perfectly beautiful objects there is found the opposition of one part to another and a reciprocal balance John Ruskin
to be in equilibrium verb
- I balanced on the pole.
to bring into balance or equilibrium verb
- You have to balance work and the rest of your life.
to compute credits and debits of an account verb
- I balance my bank account regularly.
to hold or carry in equilibrium verb
- I balanced the grocery bags carefully while trying to find my keys.