To progress at the same rate as another; to keep up(verb)
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Use "keep pace" in a sentence
"He simply thinks this boat will outclass nine hundred and ninety-nine others that will be madly chasing him all summer long, trying to keep pace with him. ''"
"Saira hurried to keep pace with them, her schoolbag constantly falling off her thick shoulders."
"Motivation is the key for weight loss success, and, for me, being able to keep pace with my grandkids is a powerful diet and exercise motivator."