transitive. To have or retain (money, goods, land, etc.) at one's disposal or in one's keeping; to own, possess; to have the use or advantage of…

To have in one's power, control, or possession; to possess.

A woman who is proficient in an art, craft, or other branch of study. to be mistress of: to be versed in or perfectly acquainted with (a subject).

transitive. To have at one's disposal; to own, to possess. Obsolete.

To have (a thing) at one's bidding, or within one's power for use or enjoyment; to have at disposal or within one's reach or grasp.