Definitions
1.nounA sharp point or pointed end.
2.nounAn important moment when a decision is made that will determine future events.
3.nounA point of a curve where the curve is continuous but has no derivative, but such that it has a derivative at every nearby point.
4.nounA point made by the intersection of two curved lines or curved structures, a common motif in Gothic architecture.
5.nounA boundary between zodiacal signs and houses.
6.nounAny of the pointed parts of a canine tooth or molar.
7.nounA flap of a valve of a heart or blood vessel.
8.verbTo behave in a reckless or dangerous manner.