Happen
Keep up
Keep up verb - To continue to operate or to meet one's needs.
Both terms in one sentence
- Troy tells the audience "We need the funds to keep up from getting pulled off the air which could literally happen at any..." Fade to black.
Source: Interrupted by the End -
The Dragon Doctors has devices that can change one's orientation easily, but it's only seen used to keep up when one's significant other switches gender (which can happen accidentally).
Source: Cure Your Gays -
A Good Bad Bug can show your Snipers firing their sniper rifles like a pistol (for pistol damage) when you told them to shoot their pistol (This animation bug can happen from ordering them shoot their pistol faster than the animations can keep up when switching to their pistol).
Source: Video Game / XCOM: Enemy Unknown
Cite this Source
Keep up and Happen. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/happen/keep_up
Happen & Keep up. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/happen/keep_up>.
Keep up or Happen. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/happen/keep_up.
Google Ngram Viewer shows how "happen" and "keep up" have occurred on timeline