\ ˈnäch
\
1a
: a V-shaped indentation
b
: a slit made to serve as a record
c
: a rounded indentation cut into the pages of a book on the edge opposite the spine
2
: a deep close pass : gap
notched;
notching;
notches
transitive verb
1
: to cut or make a notch in
2a
: to mark or record by a notch