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.
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Merriam-Webster unabridged
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