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noun, \ˈdepth\

Definition of depth

plural depths play \ˈdepths, ˈdep(t)s\

  1. 1 a (1) :  a deep place in a body of water <fish living at great depths> (2) :  a part that is far from the outside or surface <the depths of the woods> (3) :  abyss 2 b (1) :  a profound or intense state (as of thought or feeling) <the depths of misery>; also :  a reprehensibly low condition <hadn't realized that standards had fallen to such depths> (2) :  the middle of a time (as winter) (3) :  the worst part

  2. 2 a :  the perpendicular measurement downward from a surface b :  the direct linear measurement from front to back

  3. 3 :  the quality of being deep

  4. 4 :  the degree of intensity <depth of a color>; also :  the quality of being profound (as in insight) or full (as of knowledge)

  5. 5 :  the quality or state of being complete or thorough <a study will be made in depth>

  6. 6 :  a large number of good players <a team that lacks depth>

depthless play \ˈdepth-ləs\ adjective
beyond one's depth or out of one's depth
  1. :  beyond the limits of one's capabilities <an actor who is out of his depth in serious drama>

Examples of depth in a sentence

  1. These fish typically live at depths of 500 feet or more.

  2. Students will test the temperature of the water at different depths.

  3. The boat sank to a depth of several hundred feet.

  4. measuring the depth of the water

  5. the depth of a hole

  6. The pool has a depth of 12 feet.

  7. I began working at the factory during the depth of the Depression.

Origin of depth

Middle English, from dep deep

First Known Use: 14th century

DEPTH Defined for Kids


noun \ˈdepth\

Definition of depth for Students

  1. 1 :  measurement from top to bottom or from front to back <a cupboard's depth>

  2. 2 :  a place far below a surface or far inside something (as a sea or a forest) <Some unusual fish live at great depths.>

  3. 3 :  the middle of time <the depth of winter>

  4. 4 :  intensity 2 <a depth of color> <No one can imagine the … depth of our emotion … — E. B. White, The Trumpet of the Swan>

  5. 5 :  abundance, completeness <The speaker displayed a depth of knowledge.>

Medical Dictionary


noun \ˈdepth\

Medical Definition of depth

plural depths \ˈdepth, ˈdep(t)s\play play

  1. 1:  the distance between upper and lower or between dorsal and ventral points of a body

  2. 2:  the quality of a state of consciousness, a bodily state, or a physiological function of being intense or complete <the depth of anesthesia> <the depth of respiration>

Seen and Heard

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a timid, meek, or unassertive person

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