deep

adjective
\ ˈdēp How to pronounce deep (audio) \

Definition of deep

 (Entry 1 of 3)

1 : extending far from some surface or area: such as
a : extending far downward a deep well a deep chasm
b(1) : extending well inward from an outer surface a deep gash a deep-chested animal
(2) : not located superficially within the body deep pressure receptors in muscles
c : extending well back from a surface accepted as front a deep closet
d : extending far laterally from the center deep borders of lace
e sports : occurring or located near the outer limits of the playing area hit to deep right field
f sports : thrown or hit for a considerable distance : thrown or hit deep (see deep entry 2 sense 3b) a deep pass a deep fly ball
2 : having a specified extension in an implied direction usually downward or backward a shelf 20 inches deep cars parked three-deep
3a : difficult to penetrate or comprehend : recondite deep mathematical problems deep discussions on the meaning of life
b : mysterious, obscure a deep dark secret
c : grave or lamentable in nature or effect in deepest disgrace
d : of penetrating intellect : wise a deep thinker
e : intensely engrossed or immersed she was deep in her book
f : characterized by profundity of feeling or quality a deep sleep also : deep-seated deep religious beliefs
4a of color : high in saturation and low in lightness a deep red
b : having a low musical pitch (see pitch entry 4 sense 4b) or pitch range a deep voice
5a : situated well within the boundaries a house deep in the woods
b : remote in time or space found deep in rural England
c : being below the level of consciousness deep neuroses
d : covered, enclosed, or filled to a specified degree usually used in combination ankle-deep in mud
6 : large deep discounts
7 : having many good players a deep bullpen
in deep water
: in difficulty or distress

deep

adverb

Definition of deep (Entry 2 of 3)

1 : to a great depth : deeply still waters run deep tunneled deep into the earth
2 : far on : late danced deep into the night

3 sports

a : near the outer limits of the playing area the shortstop was playing deep
b : long sense 6 threw deep to the wide receiver hit the ball deep to right field

deep

noun

Definition of deep (Entry 3 of 3)

1a : a vast or immeasurable extent : abyss
b(1) : the extent of surrounding space or time the azure deep
(2) nautical : ocean the briny deep
2 : any of the deep portions of a body of water specifically : a generally long and narrow area in the ocean where the depth exceeds 3000 fathoms (5500 meters) the Aldrich Deep in the south Pacific
3 : the middle or most intense part in the deep of winter
4 nautical : any of the fathom points on a sounding line other than the marks (see mark entry 1 sense 2b)

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Other Words from deep

Adjective

deeply adverb
deepness noun

Synonyms & Antonyms for deep

Synonyms: Adjective

abysmal, bottomless, profound

Synonyms: Noun

depth, height, middle, midst, thick

Antonyms: Adjective

shallow, shoal, skin-deep, superficial, surface

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Choose the Right Synonym for deep

Adjective

broad, wide, deep mean having horizontal extent. broad and wide apply to a surface measured or viewed from side to side. a broad avenue wide is more common when units of measurement are mentioned rugs eight feet wide or applied to unfilled space between limits. a wide doorway broad is preferred when full horizontal extent is considered. broad shoulders deep may indicate horizontal extent away from the observer or from a front or peripheral point. a deep cupboard deep woods

Examples of deep in a Sentence

Adjective

We walked in the deep snow. a deep valley between the mountains The water is deepest in the middle of the lake. She's afraid of swimming in deep water. a plant with deep roots The house has lots of deep closets. She has a small but deep wound on her arm. This enormous canyon is over a mile deep. The shelves are 10 inches deep. He stepped into an ankle-deep puddle of mud.

Adverb

The ship now lies deep below the water's surface. Our feet sank deeper into the mud. The treasure was buried deep within the ground. Their secret offices were located deep underground. We walked deep into the forest. The soldiers are operating deep within enemy territory. I stood three feet deep in the water. He stepped ankle-deep into a puddle of mud.

Noun

the kind of cold weather that we usually have only in the deep of winter sailors exploring the farther reaches of the briny deep
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Recent Examples on the Web: Adjective

The quake was centered near Skwentna, 28 miles west of Willow and about 43 miles deep, according to data from the U.S. Geological Survey and Alaska Earthquake Center. Anchorage Daily News, "Magnitude 5.2 earthquake shakes Southcentral Alaska," 17 Sep. 2019 Every so often, snapping sounds and deep rumbles echoed up out of the frozen abyss, signaling that a chunk of ice was breaking off, or calving, from the glacier. Denise Chow, NBC News, "My night stranded on the edge of Greenland's fast-melting Helheim Glacier," 17 Sep. 2019 Researchers from the University of Pittsburgh published a paper about using deep learning to predict the likelihood that consumers will default on their loans. Jonathan Vanian, Fortune, "Why These Two Innovations In Artificial Intelligence Are So Important: Eye on A.I.," 17 Sep. 2019 Hal Steinbrenner, the Yankees’ principal owner, said in June that the team would do a deep dive into all the injury data in the off-season and make changes if needed. James Wagner, New York Times, "Luis Severino Returns, but the Yankees’ Slew of Injuries Remains a Mystery," 17 Sep. 2019 Both teams managed to stymie the Timbers by employing a deep defensive block, defending for long stretches and picking their moments on the counter attack. Jamie Goldberg, oregonlive, "Portland Timbers’ attack continues to struggle against bunkering opponents," 17 Sep. 2019 The Blob’s warmth penetrated hundreds of meters below the surface, but the new one extends only about 30 meters deep. Warren Cornwall, Science | AAAS, "Is ‘The Blob’ back? New marine heat wave threatens Pacific," 17 Sep. 2019 The thought originates from the deepest cavern of his divided self, the pressures that his refugee status exerts on his status as a director of images. Doreen St. Félix, The New Yorker, "“Midnight Traveler” Expands the Narrative of the Refugee Documentary," 17 Sep. 2019 On that long pass from Aaron Rodgers to Marquez Valdes-Scantling, the ball traveled 46 yards in the air past the line of scrimmage — a deep throw made possible by a coverage breakdown. Rich Campbell, chicagotribune.com, "5 observations from rewatching the Bears’ Week 2 win over the Broncos, including an offense that’s stuck and a defense that prevented huge chunk plays," 17 Sep. 2019

Recent Examples on the Web: Adverb

On the first play from scrimmage, Rodgers found Davante Adams deep up the right side for 39 yards for a first down on the Vikings’ 36. Jim Hoehn / Special To The Pioneer Press, Twin Cities, "Slow start doomed Vikings. But defense shut down Packers after that.," 15 Sep. 2019 Down 7-3 with less than four minutes remaining and 65 yards from the end zone, Daniels connected with Aiyuk deep along the left sideline for a 40-yard gain that put the Sun Devils in position for the victory. Jon Wilner, The Denver Post, "Pac-12 best of the week: WSU’s Anthony Gordon, ASU’s Herm Edwards top the Hotline honor roll," 15 Sep. 2019 Although California is today perceived as an inveterate, deep-blue state, the overwhelming control that Democrats currently have over both the legislative and executive branches is a historical anomaly. Tim Arango, New York Times, "Trump Inspires California Lawmakers to Go on Offense," 14 Sep. 2019 As deep-learning systems have come to master this ability, scientists have started to ask whether computers analyze data—and particularly images—similarly to the human brain. Dana G. Smith, Scientific American, "No Bones about It, People Recognize Objects by Visualizing Their “Skeletons”," 11 Sep. 2019 Rather, locals would bring their own dough or fish to be baked in the large oven, usually by a single man using a variety of long, wooden sticks to retrieve the food from deep within the clay furnace. National Geographic, "A Minute in Marrakesh," 10 Sep. 2019 The skinny on the scary: A mining company drilled deep beneath the water’s surface and, in doing so, released monstrous creatures. Kathleen Christiansen, orlandosentinel.com, "Halloween Horror Nights: A guide to Universal’s 10 houses," 10 Sep. 2019 The Oregon State Elections Division, which employs 20 people and maintains a $6.8 million annual budget, doesn’t dig deep. oregonlive, "Case Closed: In Oregon campaign investigations, ‘I did not’ is all it takes," 17 Sep. 2019 The ice froze through the fall and winter, shedding very cold, very briny seawater that -- due to its density -- would sink and eventually form a frigid layer down deep. Anchorage Daily News, "As Bering Sea ice melts, Alaskans, scientists and Seattle’s fishing fleet witness changes ‘on a massive scale’," 17 Sep. 2019

Recent Examples on the Web: Noun

The denizens of the deep are an exotic bunch even beyond their appetite for solid rock. NBC News, "Strange life-forms found deep in a mine point to vast 'underground Galapagos'," 7 Sep. 2019 The Bills are two-deep at every defensive line spot, but their only pure pass rusher is bull-rushing ace Jerry Hughes. Andy Benoit, SI.com, "Behind a Re-stocked Offensive Line, Bills’ Ground Game Is Primed to Take Off," 7 Aug. 2019 In many spots along the sidewalk, spectators stood zero deep. Steve Rubenstein, SFChronicle.com, "Filipinos celebrate annual Pistahan festival in SF," 10 Aug. 2019 Alexandra and Yongden decided to walk knee-deep into the tableland ahead of them. Ailsa Ross, Longreads, "Mountains, Transcending," 9 Aug. 2019 The Pirates are switching from a 3-4 defense to a 4-3, and the team’s strength, Gonzalez says, are a deep and experienced linebacker corps, featuring returning starters Crisp, Zeke Alleman, and Chris Castillo. Scott French, Daily Pilot, "Junior College Football Preview: Orange Coast looks to turn things around," 6 Sep. 2019 Key Play: Nebraska’s JD Spielman fumbled a punt deep in his own territory to set up South Alabama’s first touchdown, which cut a 21-point lead to 14. Creg Stephenson | Cstephenson@al.com, al, "Quarter-by-quarter look at South Alabama’s 35-21 loss to Nebraska," 31 Aug. 2019 The antihero of the Ultimate Fighting Championship was on his patio, neck-deep in training for his first fight in three years. John Branch, New York Times, "U.F.C. Needs an Antihero: Nate Diaz Returns Just in Time," 15 Aug. 2019 The Jaguars’ deep and experienced defensive front — which features five seniors and a fourth-year junior — also had a nice day, particularly after star Tyree Turner left the game due to injury in the first quarter and did not return. Creg Stephenson | Cstephenson@al.com, al, "5 things we learned from South Alabama’s 35-21 loss to Nebraska," 2 Sep. 2019

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

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First Known Use of deep

Adjective

before the 12th century, in the meaning defined at sense 1

Adverb

before the 12th century, in the meaning defined at sense 1

Noun

before the 12th century, in the meaning defined at sense 1a

History and Etymology for deep

Adjective, Adverb, and Noun

Middle English dep, from Old English dēop; akin to Old High German tiof deep, Old English dyppan to dip — more at dip

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Statistics for deep

Last Updated

17 Oct 2019

Look-up Popularity

Time Traveler for deep

The first known use of deep was before the 12th century

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More Definitions for deep

deep

adjective

English Language Learners Definition of deep

 (Entry 1 of 2)

: having a large distance to the bottom from the surface or highest point
: going far inward from the outside or the front edge of something
: located far inside something

deep

adverb

English Language Learners Definition of deep (Entry 2 of 2)

: far into or below the surface of something
: far into or inside something
: at a specified measurement downward, inward, or backward

deep

adjective
\ ˈdēp How to pronounce deep (audio) \
deeper; deepest

Kids Definition of deep

 (Entry 1 of 3)

1 : reaching far down below the surface
2 : reaching far inward or back from the front or outer part a deep cut a deep closet
3 : located well below the surface or well within the boundaries of deep in the ground
4 : coming from well within a deep sigh
5 : completely absorbed deep in thought
6 : hard to understand This story is too deep for me.
7 : mysterious a deep, dark secret
8 : extreme in degree : heavy a deep sleep
9 : dark and rich in color a deep red
10 : low in tone a deep voice

Other Words from deep

deeply adverb

deep

adverb
deeper; deepest

Kids Definition of deep (Entry 2 of 3)

1 : to a great depth : deeply
2 : late entry 2 sense 1 She read deep into the night.

deep

noun

Kids Definition of deep (Entry 3 of 3)

1 : a very deep place or part the ocean deeps
2 : ocean sense 1 Pirates sailed the briny deep.
3 : the middle or most intense part the deep of winter

deep

adjective
\ ˈdēp How to pronounce deep (audio) \

Medical Definition of deep

1a : extending well inward from an outer surface a deep gash
b(1) : not located superficially within the body or one of its parts deep pressure receptors in muscles
(2) : resulting from or involving stimulation of deep structures deep pain deep reflexes
2 : being below the level of the conscious deep neuroses

Other Words from deep

deeply adverb

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More from Merriam-Webster on deep

Thesaurus: All synonyms and antonyms for deep

Spanish Central: Translation of deep

Nglish: Translation of deep for Spanish Speakers

Britannica English: Translation of deep for Arabic Speakers

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