The existence of time is real.
He now faces another crisis in his helter-skelter existence.
The existence of life on other planets has been a topic of speculation for decades.
My minimum wage job provides me with a meagre existence.
How can you use the word infectious in a sentence
Theirs was a frugal existence, living on what they grew.
Since that is not a word I would not attempt to use it in a sentence.
You just did use the word colonize in a sentence.
I was alerted that the question did not exist.
Monks are usually ascetic.
Murders, crimes, assaults, and theft was the bane of the priest's existence.
how would you use the word finished in a command sentence
1. you did just use that word in a sentence 2. if a doctor would use the word tumor in a sentence they would probably say "we need to remove the tumor from this persons body."