off
In a direction away from the speaker or other reference point.
Example
“He drove off in a cloud of smoke.”
Other meanings
Into a state of non-operation or non-existence.
“Please switch off the light when you leave.”
So as to remove or separate, or be removed or separated.
“He bit off the end of the carrot.”
Example sentences
Word history
From Old English "of".
Where this comes from
This definition is adapted from “off” 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.