We found 4 dictionaries that define the word to keep up:

General (4 matching dictionaries)

1. to keep up: Wordnik
2. To keep up: Dictionary.com
3. to keep up: FreeDictionary.org
4. To keep up: TheFreeDictionary.com

Phrases: to keep up with, unable to keep up, able to keep up with, struggling to keep up mentally, struggling to keep up, more... ▸ Words similar to to keep up ▸ Usage examples for to keep up ▸ Idioms related to to keep up ▸ Wikipedia articles (New!) ▸ Words that often appear near to keep up ▸ Rhymes of to keep up ▸ Invented words related to to keep up