Learner's definition of DISPOSAL
the act of disposing of something: such as
the act of throwing something away
the act of giving control or ownership of land, possessions, etc., to someone
at someone's disposal
available for someone to use
We had plenty of money at our disposal.
I'm at your disposal. [=I'm ready to do whatever you would like me to do]
They are using every legal tool at their disposal to prevent the bridge from being built.