center

The point in the interior of a circle that is equidistant from all points on the circumference.

If a point be taken within a circle, and more than two equal straight lines fall from the point on the circle, the point taken is the centre of the circle.

The point in the interior of a sphere that is equidistant from all points on the circumference.

Japanese scientists are to explore the centre of the Earth. Using a giant drill ship launched next month, the researchers aim to be the first to punch a hole through the rocky crust that covers our planet and to reach the mantle below.

The middle portion of something; the part well away from the edges.

The middle portion of something; the part well away from the edges.

[...] their portion set As far remov'd from God and light of Heav'n As from the Center thrice to th'utmost Pole.

Leo. No: if I mistake In those Foundations which I build upon, The Centre is not bigge enough to beare A Schoole-Boyes Top.

The point on a line that is midway between the ends.

Of, at, or related to a center.

To cause (an object) to occupy the center of an area.

????, Matthew Prior, Celia to Damon Thy joys are centred all in me alone.

He centered the heading of the document.

To cause (some attribute, such as a mood or voltage) to be adjusted to a value which is midway between the extremes.

To give (something) a central basis.

However, Lucas also centered the plot around the protection of the secret Death Star plans, which now filled the role of the clan treasure the enemy is seeking in Hidden Fortress; […]

To concentrate on (something), to pay close attention to (something).

The plot centers on the life of a working-class family.

The discussion centered around the recent issues.

To form a recess or indentation for the reception of a center.