To behave in a reckless or dangerous manner.
A point made by the intersection of two curved lines or curved structures, a common motif in Gothic architecture.
Any of the pointed parts of a canine tooth or molar.
A point of transition.
A flap of a valve of a heart or blood vessel.
A boundary between zodiacal signs and houses.
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.
A sharp point or pointed end.
An important moment when a decision is made that will determine future events.
Engage in rough-and-tumble activity
active, vigorous and rough, with the possibility of harm
highly competitive
An environment of rough activity
Rough activity; fighting or brawling; a fight.
A person who characteristically engages in such activity