depth

noun

• 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