What is the meaning of the word "equal"?

Definitions:

a person who is of equal standing with another in a group noun
- I am an equal in this group, and I should get a fair say.
having the requisite qualities or resources to meet a task adjective
- I was an equal challenger in the match.
having the same quantity, value, or measure as another adjective
- The two bowls of flour were equal.
to be equal to in quality or ability verb
- I equal my peers in reading ability.
to be identical or equivalent to verb
- One dollar equals 1,000 rubles these days.
to make equal, uniform, corresponding, or matching verb
- Let's equal the duties among all employees in this office.