keep tabs on

: to retain in one's possession or power

: to refrain from granting, giving, or allowing

: to have in control

: the means or provisions by which one is kept

: one that keeps or protects: such as

: fortress, castle

: a short projecting device: such as

: a small flap or loop by which something may be grasped or pulled

: a projection from a card used as an aid in filing

: to furnish or ornament with tabs

: to single out : designate

: tabulate