Noun

(en noun)

A sharp point or pointed end.

(figuratively) An important moment when a decision is made that will determine future events.

* {{quote-news

, year=2012 , date=April 21 , author=Jonathan Jurejko , title=Newcastle 3-0 Stoke , work=BBC Sport citation , page= , passage=Newcastle were 11 points adrift of Spurs following their 5-0 mauling at the hands of the north London club in February.
But a sixth successive Premier League win puts them on the cusp of European football next season as they surged 15 points clear of seventh-placed Everton, who have five games left to play.}}

(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.

(architecture) A point made by the intersection of two curved lines or curved structures. A common motif in Gothic architecture.Russell Sturgis, ed. (1902). A Dictionary of Architecture and Building: Biographical, Historical, and Descriptive . 3. Macmillan.

(astrology) A boundary between zodiacal signs and houses.

(dentistry) Any of the pointed parts of a canine tooth or molar.

Noun

(boundaries)

The dividing line or location between two areas.

*

*:So this was my future home, I thought!Backed by towering hills, the but faintly discernible purple line of the French boundary off to the southwest, a sky of palest Gobelin flecked with fat, fleecy little clouds, it in truth looked a dear little city; the city of one's dreams.

(cricket) An edge or line marking an edge of the playing field.

(cricket) An event whereby the ball is struck and either touches or passes over a boundary (with or without bouncing), usually resulting in an award of 4 (a four) or 6 (a six) runs respectively for the batting team.

(topology) (of a set) the set of points in the closure of a set $S$, not belonging to the interior of that set.