\ ˈdepth How to pronounce depth (audio) \
plural depths\ ˈdepths How to pronounce depths (audio) , ˈdep(t)s How to pronounce depths (audio) \

Definition of depth

1a(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
b(1) : a profound or intense state (as of thought or feeling) the depths of sorrow also : a reprehensibly low condition hadn't realized that standards had fallen to such depths
(2) : the middle of a time (such as a season) the depths of winter
(3) : the worst part the depths of the depression
2 mathematics
a : the perpendicular (see perpendicular entry 1 sense 1b) measurement downward from a surface the depth of a swimming pool
b : the direct linear measurement from front to back the depth of a bookshelf
3 : the quality of being deep the depth of the pass
4 : the degree of intensity depth of a color also : the quality of being profound (as in insight) or full (as of knowledge) the depth of her experience
5 : the quality or state of being complete or thorough used in the phrase in deptha study will be made in deptha subject being discussed in depth [=thoroughly, comprehensively] — compare in-depth
6 US, sports : the quality of having many good players a team that lacks depth in the outfield
beyond one's depth or out of one's depth
: beyond the limits of one's capabilities an actor who is out of his depth in serious drama

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Other Words from depth

depthless \ ˈdepth-​ləs How to pronounce depthless (audio) \ adjective

Synonyms for depth


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Examples of depth in a Sentence

These fish typically live at depths of 500 feet or more. Students will test the temperature of the water at different depths. The boat sank to a depth of several hundred feet. measuring the depth of the water the depth of a hole The pool has a depth of 12 feet. I began working at the factory during the depth of the Depression.
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Recent Examples on the Web The governor says today's update will include guidelines for safely reopening restaurants and retail, as well as an in-depth discussion on contact tracing. Jennie Key,, "Coronavirus in Kentucky: Gov. Beshear's update focuses on reopening and contact tracing," 18 May 2020 An in-depth look: How does the coronavirus cause COVID toes or loss of smell? Adrianna Rodriguez, USA TODAY, "Tingling in the hands or feet can be associated with COVID-19, but not the way you may think," 18 May 2020 More: Check out the Detroit Free Press’ data tracking for an in-depth look at these numbers Meredith Spelbring is a news intern with the Detroit Free Press. Meredith Spelbring, Detroit Free Press, "Michigan reports 497 new cases of coronavirus, 38 deaths," 15 May 2020 As the weeks have passed, Traylor said the teaching approach has become less broad and more in-depth, including scripting what a typical practice day would look like and walking the players through it. Greg Luca,, "UTSA football continuing to forge ahead despite uncertain future," 10 May 2020 Read the in-depth report from Houston Chronicle's Robert Downen. Alison Medley, Houston Chronicle, "Houston coronavirus updates: What you need to know about May 3," 3 May 2020 From pictures of elaborate camera setups to selfies, our photographers take us behind the scenes of creating the in-depth, indelible storytelling that defines National Geographic. National Geographic, "What does it take to create a National Geographic image?," 1 May 2020 The Post published an in-depth examination of her account two weeks ago. Anchorage Daily News, "Calls grow for Biden to address allegation," 29 Apr. 2020 Take a look at five of the best performers from our test, then scroll down for buying advice and more in-depth reviews of these and other headphones. Will Egensteiner, Popular Mechanics, "The Best Wireless Headphones for the Office, Traveling, and Working Out," 28 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'depth.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of depth

14th century, in the meaning defined at sense 1a(1)

History and Etymology for depth

Middle English, from dep deep

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Time Traveler for depth

Time Traveler

The first known use of depth was in the 14th century

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Statistics for depth

Last Updated

23 May 2020

Cite this Entry

“Depth.” Dictionary, Merriam-Webster, Accessed 2 Jun. 2020.

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More Definitions for depth


How to pronounce depth (audio)

English Language Learners Definition of depth

: a distance below a surface
: the distance from the front of something to the back
: an area that exists far below a surface or far inside something : a deep place or area


\ ˈdepth How to pronounce depth (audio) \

Kids Definition of depth

1 : measurement from top to bottom or from front to back a cupboard's depth
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 : the middle of time the depth of winter
4 : intensity sense 2 a depth of color No one can imagine the … depth of our emotion …— E. B. White, The Trumpet of the Swan
5 : abundance, completeness The speaker displayed a depth of knowledge.


\ ˈdepth How to pronounce depth (audio) \
plural depths\ ˈdepth How to pronounce depths (audio) , ˈdep(t)s How to pronounce depths (audio) \

Medical Definition of depth

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

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