[ depth ]
/ dɛpθ /


Nearby words

  1. depside,
  2. dept,
  3. dept.,
  4. deptford,
  5. deptford pink,
  6. depth charge,
  7. depth finder,
  8. depth gauge,
  9. depth of field,
  10. depth of focus


    in depth, extensively or thoroughly: Make a survey in depth of the conditions.
    out of/beyond one's depth,
    1. in water deeper than one's height or too deep for one's safety.
    2. beyond one's knowledge or capability: The child is being taught subjects that are beyond his depth.

Origin of depth

1350–1400; Middle English depthe, equivalent to dep (Old English dēop deep) + -the -th1

Related formsdepth·less, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for depth

British Dictionary definitions for depth


/ (dɛpθ) /


Word Origin for depth

C14: from dep deep + -th 1

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for depth



late 14c., apparently formed in Middle English on model of length, breadth; from Old English deop "deep" (see deep) + -th (2). Replaced older deopnes "deepness." Though the English word is relatively recent, the formation is in Proto-Germanic, *deupitho-, and corresponds to Old Saxon diupitha, Dutch diepte, Old Norse dypð, Gothic diupiþa.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for depth


[ dĕpth ]


The extent, measurement, or dimension downward, backward, or inward.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Idioms and Phrases with depth


see in depth; out of one's depth.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.