Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “deepen”

See all translations

deepen

verb uk   /ˈdiː.pən/ us  

deepen verb (DOWN)

[I or T] to make something deeper, or to become deeper: One way of preventing further flooding would be to deepen the river bed. The sea bed deepens here to 5,000 metres.

deepen verb (STRONGLY FELT)

C2 [I or T] to become more strongly felt or experienced, or to make something this way: Over the years, her love for him deepened. The economic crisis is deepening. We must try not to deepen existing splits within the party.

deepen verb (COMPLICATED)

C1 [I or T] to make something increase or become more serious: It certainly helped to deepen my understanding of the situation.

deepen verb (LOW)

[I] to become lower: Boys' voices deepen in their early to mid-teens.

deepen verb (DARK)

[I] to become darker: The shadows deepened as the sun dropped below the horizon.
(Definition of deepen from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of deepen?
Add Cambridge dictionaries to your browser to your website

Definitions of “deepen” in other dictionaries

Word of the Day

sail

When a boat or a ship sails, it travels on the water.

Word of the Day

Byronic, Orwellian and Darwinian: adjectives from names.

by Liz Walter,
April 15, 2015
Becoming an adjective is a strange kind of memorial, but it is often a sign of a person having had real influence on the world. Science is full of examples, from Hippocrates, the Greek medic born around 460 BC, who gave his name to the Hippocratic Oath still used by doctors today,

Read More 

dumbwalking noun

April 20, 2015
walking slowly, without paying attention to the world around you because you are consulting a smartphone He told me dumbwalking probably wouldn’t be a long-term problem.

Read More