cusp in Bulgarian
cusp in Bulgarian
връх
A sharp point or pointed end.
повратна точка
(figuratively) An important moment when a decision is made that will determine future events.
преломен момент
(figuratively) An important moment when a decision is made that will determine future events.
рог
(geometry) A point of a curve where the curve is continuous but has no derivative, but such that it has a derivative at every nearby point.