keep up with

Definition of keep up with

1 : to go or make progress at the same rate as (others) : to stay even with (others) in a race, competition, etc. The other runners struggled to keep up with the leader. He found it difficult to keep up with the rest of the class.
2 : to continue to know the newest information about (something) I find it hard to keep up with the news.
3 informal : to continue to talk to or write to (someone) She still keeps up with her old friends from college.

: 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

: in or into a higher position or level
: away from the center of the earth
: from beneath the ground or water to the surface

: used as a function word to indicate motion to or toward or situation at a higher point of
: up into or in the
: in a direction regarded as being toward or near the upper end or part of

: one in a high or advantageous position
: an upward slope
: a period or state of prosperity or success

: to rise from a lying or sitting position
: to move upward : ascend
: used with and and another verb to indicate that the action of the following verb was either surprisingly or abruptly initiated