after an unspecified period of time or an especially long delay
"After waiting for hours in the rain, we finally reached the top of the mountain."
as the end result of a succession or process
"ultimately he had to give in"
"at long last the winter was over"
At the end or conclusion; ultimately.
"After years of searching for a quiet place to write, she finally found her perfect spot in the old library at the edge of town."
In plain English: Finally means at last, after waiting a long time or going through many steps before something happens.
"I was so tired when I finally arrived home after the long drive."
Usage: Use "finally" to indicate that something has occurred after a long delay or series of events, emphasizing relief or completion. Do not use it to mean "at last" when referring to a simple chronological sequence without an implied struggle.
Finally comes from the Middle English word fynally, which is formed by adding -ly to final. The term entered modern usage with its current meaning of "at last" directly inherited from this earlier form.