Boundary vs. Contour — What's the Difference?

A line which marks the limits of an area; a dividing line

The outline of a figure, body, or mass.

A hit crossing the limits of the field, scoring four or six runs.

A line that represents such an outline.

Something that indicates a border or limit.

A contour line.

The border or limit so indicated.

A varying characteristic or quality of something, such as a melody.

The dividing line or location between two areas.

(Linguistics) The distinctive rising and falling patterns of pitch, tone, or stress.

The bounds, confines, or limits between immaterial things such as one’s comfort zone, privacy, or professional sphere and the realm beyond.please check this definition along with the example below

To make or shape the outline of; represent in contour.

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

To build (a road, for example) to follow the contour of the land.

(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 (four) or 6 (six) runs respectively for the batting team.

Following the contour lines of uneven terrain to limit erosion of topsoil

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

Shaped to fit the outline or form of something

That which indicates or fixes a limit or extent, or marks a bound, as of a territory; a bounding or separating line; a real or imaginary limit.

An outline, boundary or border, usually of curved shape.

The line or plane indicating the limit or extent of something

A line on a map or chart delineating those points which have the same altitude or other plotted quantity: a contour line or isopleth. Category:en:Curves

A line determining the limits of an area

(linguistics) a speech sound which behaves as a single segment, but which makes an internal transition from one quality, place, or manner to another.

The greatest possible degree of something;

(figurative) A general description giving the most important points.

(transitive) To form a more or less curved boundary or border upon.

(transitive) To mark with contour lines.

(intransitive) To practise the makeup technique of contouring.

The outline of a figure or body, or the line or lines representing such an outline; the line that bounds; periphery.

The outline of a horizontal section of the ground, or of works of fortification.

A line drawn on a map connecting points of equal height

Any spatial attributes (especially as defined by outline);

A feature (or the order or arrangement of features) of anything having a complex structure;

Form the contours of