notch

Short definition from Wiktionary

Noun

1. 1
   A V-shaped cut.
2. 2
   A V-shaped cut: Such a cut, used for keeping a record.
3. 3
   An indentation.
4. 4
   A mountain pass; a defile.
5. 5
   The female primary sex organ, vulva.
6. 6
   A woman.
7. 7
   A discontinuous change in a taxation schedule.
8. 8
   A level or degree.
9. 9
   A portion of a mobile phone that overlaps the edge of the screen, used to house a camera, sensors etc. while maximizing screen space.

Verb

1. 1
   To cut a notch in (something).
2. 2
   To record (a score or similar) by making notches on something.
3. 3
   To join by means of notches.
4. 4
   To achieve (something); to add to one's score or record of successes.
5. 5
   Synonym of nock (“to fit (an arrow) to a bow”).