deepen

[ dee-puhn ]
See synonyms for: deependeepening on Thesaurus.com

verb (used with or without object)
  1. to make or become deep or deeper: Larger ships will be able to navigate the river after the main channel is deepened. The shadows deepened toward late afternoon.

  2. Meteorology. to decrease in atmospheric pressure: a deepening cyclone.

Origin of deepen

1
First recorded in 1595–1605; deep + -en1

Other words from deepen

  • deep·en·er, noun
  • deep·en·ing·ly, adverb
  • o·ver·deep·en, verb (used with object)
  • un·deep·ened, adjective

Words Nearby deepen

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use deepen in a sentence

British Dictionary definitions for deepen

deepen

/ (ˈdiːpən) /


verb
  1. to make or become deep, deeper, or more intense

Derived forms of deepen

  • deepener, noun

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