cannot
Can not; be unable to (whether due to physical inability, logical impossibility, etc.).
Example
“I cannot open the window. It is stuck.”
Other meanings
Be forbidden or not permitted to.
Example sentences
Word history
From Middle English "can not,cannot,cannouȝt".
Where this comes from
This definition is adapted from “cannot” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.