Definition of "keep up" [keep up]

• To maintain; to preserve; to prevent from deteriorating. (verb)
• To continue with (work, etc). (verb)
• To stay even or ahead. (verb)
• To ensure that one remains well-informed about something (verb)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "“What can you tell us about Adele Hopkins?” the reporter asked as once again he and his cameraman struggled to keep up with a reluctant interviewee."
• "LaShekia spent several days a week unable to go to school, struggling to keep up with homework from bed."
• "(Melchite, Maronite, Syriac, Chaldean, Coptic, AEthiopic, etc.), together with the heretical Oriental Churches, all keep up the recitation of the Psalter as their Divine Office."