depth

The vertical distance below a surface; the degree to which something is deep

“Measure the depth of the water in this part of the bay.”

The distance between the front and the back, as the depth of a drawer or closet

The intensity, complexity, strength, seriousness or importance of an emotion, situation, etc.

“The depth of her misery was apparent to everyone.”

Lowness

“the depth of a sound”

(colors) the total palette of available colors

The property of appearing three-dimensional

“The depth of field in this picture is amazing.”

(usually in the plural) the deepest part (usually of a body of water)

“The burning ship finally sunk into the depths.”

(usually in the plural) a very remote part.

“In the depths of the night,”

The most severe part

“in the depth of the crisis”

The number of simple elements which an abstract conception or notion includes; the comprehension or content

A pair of toothed wheels which work together

The perpendicular distance from the chord to the farthest point of an arched surface

The lower of the two ranks of a value in an ordered set of values