|Origin:||Probably from an otch, mistaken for a notch; from early French oche 'V-shaped cut'|
a level on a scale that measures something, for example quality or achievement:
Her new book is several notches above anything else she has written.
Jackson raised his voice by a notch.
The Spartans turned it up a notch in the second half.
a V-shaped cut or hole in a surface or edge:
Cut a notch near one end of the stick.
3 American EnglishDNSG
a passage between two mountains or hills