deep·​en | \ ˈdē-pən How to pronounce deepen (audio) \
deepened; deepening\ ˈdē-​pə-​niŋ How to pronounce deepening (audio) , ˈdēp-​niŋ \

Definition of deepen

transitive verb

: to make deep or deeper

intransitive verb

: to become deeper or more profound

Keep scrolling for more

Examples of deepen in a Sentence

They deepened the river so that larger boats could sail through. Age had deepened the lines in his face. The water deepens toward the center of the river. Her powerful words deepened our commitment to the cause. The vacation together deepened their relationship with each other. The mystery was deepened by her silence. This class will deepen your understanding of economics. Living in the country's capital had deepened her knowledge of politics.
See More

Recent Examples on the Web

But like Obama, Trump as president has ended up deepening the U.S. commitments in Afghanistan, as well as adding troops in Syria. Adam Weinstein, The New Republic, "Most Veterans Say America’s Wars Are a Waste. No One’s Listening to Them.," 12 July 2019 My skin gradually becomes paler, and the dark circles under my eyes deepen. Joelle Zarcone, SELF, "My Cooley’s Anemia Helps Me View Workouts as a Gift, Not a Chore," 12 July 2019 The deepening fault lines in today’s economic landscape are defined both by education and by geography. David Meyer, Fortune, "Your Zip Code May Determine Your Economic Future: CEO Daily," 11 July 2019 And Castro also suggested the deepening schism will stonewall legislation, especially measures related to funding for the Department of Homeland Security, which oversees ICE. CBS News, "Joaquin Castro: ICE raids represent Trump's second "family separation" policy," 11 July 2019 The maps reinforced and deepened segregation that persists today., "Unequal violence, unequal justice: Homicide in one of America’s most segregated cities," 10 July 2019 The discontent is likely to continue, deepened by a revival of deep-seated frustrations over the city’s lack of true political representation. Ilaria Maria Sala, Quartz, "Hong Kong’s last major riots reshaped the city into the one we know today," 9 July 2019 The budget reveals its policy mindset—deepening access to markets is enough to ensure growth. Rahul Menon, Quartz India, "The Modi government wants a $5 trillion economy by 2024, but has done little to back it," 8 July 2019 The dramatic firing sent the Turkish lira sinking 2% against the US dollar and deepened doubts about the independence of the country's central bank. Matt Egan, CNN, "Turkey is the poster child for what happens when politicians mess with central banks," 8 July 2019

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

See More

First Known Use of deepen

1598, in the meaning defined at transitive sense

Keep scrolling for more

Learn More about deepen

Statistics for deepen

Last Updated

15 Jul 2019

Look-up Popularity

Time Traveler for deepen

The first known use of deepen was in 1598

See more words from the same year

Keep scrolling for more

More Definitions for deepen



English Language Learners Definition of deepen

: to become or to cause (something) to become deep or deeper
: to become or to cause (something, such as a feeling or emotion) to become stronger or more powerful
: to make (your knowledge, understanding, etc.) fuller or more complete


deep·​en | \ ˈdē-pən How to pronounce deepen (audio) \
deepened; deepening

Kids Definition of deepen

: to make or become deep or deeper I deepened the hole.

Keep scrolling for more

More from Merriam-Webster on deepen

Rhyming Dictionary: Words that rhyme with deepen

Thesaurus: All synonyms and antonyms for deepen

Spanish Central: Translation of deepen

Nglish: Translation of deepen for Spanish Speakers

Britannica English: Translation of deepen for Arabic Speakers

Comments on deepen

What made you want to look up deepen? Please tell us where you read or heard it (including the quote, if possible).


providing supplementary assistance

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!