plural
cusps
plural
cusps
Britannica Dictionary definition of CUSP
[count]
technical
:
a pointed end or part where two curves meet
on the cusp
:
at the point when something is about to change to something else
-
She is on the cusp [=on the verge] of being a star.
-
on the cusp between childhood and adolescence
-
I was born on the cusp between Leo and Virgo.