Synonyms for keep up
verb
To keep in repair
maintain, sustain, care for, safeguard; see maintain 3.
To continue
persist, persevere, carry on; see continue 1.
To maintain the pace
keep pace, keep step, keep abreast, keep up-to-date; see compete, equal, rival.
See keep up in Webster's New World Roget's A-Z Thesaurus II
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