one of our/your/their number

:  of or relating to us or ourselves or ourself especially as possessors or possessor, agents or agent, or objects or object of an action

:  of or relating to you or yourself or yourselves especially as possessor or possessors , agent or agents , or object or objects of an action

:  of or relating to one or oneself

: used with little or no meaning almost as an equivalent to the definite article the

:  a sum of units :  total

:  complement

:  an indefinite usually large total

:  count, enumerate

:  to claim as part of a total :  include

:  to restrict to a definite number