Cells are fundamental to spreadsheets.
"the fundamental flaw in your plan is...""we used to believe that the fundamental ingredient for life was water..."
You have to learn fundamental things before moving onto harder subjects
my daughter goes to corona fundamental intermediateschool!!
You just used the word acolytes in a sentence. Even saying, "can the word acolytes be used in a sentence", you are using that word in a sentence.
Example sentence - The answers included fundamental thinking on his part.
The vase from her grandmother was fundamental.
Learning is fundamental!
My mother and I agreed to let me drive the car to prom.
The word "incidentally" can be used at the end of a sentence. You can make the sentence "This was done incidentally.".
Autotrophs are fundamental to the food chains of all ecosystems in the world.
You just used it in a sentence.
Fundamental idea (I don't know a full sentence but maybe this could help you a little)