Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- v. To make or become deep or deeper.
Century Dictionary and Cyclopedia
- To become deep or deeper, in any sense; increase in depth.
- To make deep or deeper, in any sense.
Wiktionary
- v. To make deep or deeper
- v. To make darker or more intense; to darken
- v. To make more poignant or affecting; to increase in degree
- v. To make lower in tone
- v. intransitive To become deeper
- v. intransitive To become darker or more intense
- v. intransitive To become lower in tone
GNU Webster's 1913
- v. To make deep or deeper; to increase the depth of; to sink lower.
- v. To make darker or more intense; to darken.
- v. To make more poignant or affecting; to increase in degree.
- v. To make more grave or low in tone.
- v. To become deeper
WordNet 3.0
- v. make more intense, stronger, or more marked
- v. make deeper
- v. become more intense
- v. become deeper in tone
Etymologies
- From deep + -en (Wiktionary)
Examples
“If you read him with attention, Williams will expand your mind, will set it on things wondrous and permanent, will make the world you live in deepen because of the new-perceived order.”
“She watched the puzzled expression deepen on Olga's face.”
“Odes are recited to the mysterious ways financial elites "deepen" markets and make them more efficient -- how they even out prices.”
“Locate the nearest bomb shelter, NOW: "Condoleezza Rice, the US secretary of state, said yesterday that she was going to "deepen" American involvement in the Israeli-Palestinian peace process and "accelerate" progress on the road map.”
“The Vice President will host a lunch for the Prime Minister and I would expect the other meetings, including the meeting with the President, to address their anticipated entry into NATO, other regional issues involving cooperation in Central and Eastern Europe, and just steps to kind of deepen our bilateral relationship.”
“On Dec. 2, she told Washington Post columnist Lally Weymouth she has "great admiration" for Obama, and in her inaugural speech to Congress said she hopes to "deepen" ties with the U.S.”
“And they will seek to "deepen" US-Brazil ties during stops in Rio and Brasilia, as well as highlight the South American giant's "extraordinary efforts" to reduce poverty and crime.”
“Mr van Rumpoy added that the EU will "deepen" its common market with more reforms later this year.”
Telegraph.co.uk - Telegraph online, Daily Telegraph and Sunday Telegraph
“Security Treaty, the two governments have declared their intention to "deepen" the alliance.”
WN.com - Articles related to LEAD: GSDF officer reprimanded over speech on Japan-U.S. alliance+
“Among the measures, the Institute for Adult Learning (IAL) will introduce a suite of courses including a Diploma in Adult and Continuing Education to "deepen" the skills of educators in curriculum design, and a Masters Degree in lifelong learning with the University of London, to name a few.”
Lists
These user-created lists contain the word ‘deepen’.
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EU Buzz - EN words misused by the EU
A list based on http://ec.europa.eu/translation/english/guidelines/document...
actor, actual, adequate, agenda, agent, aids, allow, anglo-saxon, articulate, assist, axis, attestation and 77 more...
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GRE AWA
escalating, vehement, vehemence, hostility, paparazzi, regime, irrespective, scoop, exaggerated, overblown, unfetter, scrupulous and 272 more...
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Monovocalics
Words that have only one of the vowels. On this list I include only words with at least three vowels. When I first started the list, if a word had several forms, I generally listed only the one wit...
syzygy, mirific, cumulus, homolog, monocot, bedewed, jezebel, referee, bikini, minikin, locomotor, terebenthene and 2359 more...
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Gramograms: Words that sound like let...
From --Chris Cole, "Wordplay: A curious dictionary of language oddities".
apiarian, beadier, cesium, devious, eosinophilous, effeminacy, gillotti, iberian, jacuzzi, caseous, elementarily, eminency and 29 more...
Tweets
Looking for tweets for deepen.

oroboros Sounds like the letters D P N. Oct 30, 2009