Definitions
1.NounA V-shaped cut.
Such a cut, used for keeping a record."The notches in that tribe's warrior axe handles stand for killed enemies."
2.NounSuch a cut, used for keeping a record."The notches in that tribe's warrior axe handles stand for killed enemies."
3.NounAn indentation.
4.NounA mountain pass; a defile.
5.NounThe female primary sex organ, vulva.
6.NounA woman.
7.NounA discontinuous change in a taxation schedule.
8.NounA level or degree."This car is a notch better than the other.; Can you speak a notch louder, please?"
9.NounA portion of a mobile phone that overlaps the edge of the screen, used to house a camera, sensors etc. while maximizing screen space.
10.VerbTo cut a notch in (something).
11.VerbTo record (a score or similar) by making notches on something."The tribe's hunters notch their kills by notches on each's axe's handle."
12.VerbTo join by means of notches.
13.VerbTo achieve (something); to add to one's score or record of successes."The team notched a pair of shutout wins on Sunday."
14.VerbSynonym of nock (“to fit (an arrow) to a bow”).
15.VerbTo change in small graduations."to notch back a salary"