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

Synonyms: Noun

Antonyms: Adjective

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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 increase in inflation from 1.7% in February was the biggest rise since 2009, the last time the economy was recovering from a deep shock. The Economist, "Be prepared The Fed should explain how it will respond to rising inflation," 17 Apr. 2021 Along the hardware-store spectrum, Pioneer is more daily needs than deep dive. Los Angeles Times, "Column: Pioneer Hardware is one of the last reminders that Beverly Hills is more than just a glitzy ZIP Code," 15 Apr. 2021 Fields paired arm strength with precision, moving around the pocket and occasionally escaping it to hit deep routes in stride. Nathan Baird, cleveland, "Ohio State football’s Shaun Wade and Justin Fields answered skeptics with a prove-it Pro Day," 15 Apr. 2021 The center has 16 tanks, each 4 feet wide, 8 feet long and 2 feet deep, holding 300 gallons. Kevin Spear, orlandosentinel.com, "Orlando sanctuary nurses largest cluster of Florida corals rescued from a devastating disease," 15 Apr. 2021 In 2014, Hurricane Odile drenched the valley and unleashed floodwaters that reached about three feet deep in places, Pérez said. azcentral, "Trump's border wall scarred sacred lands, displaced wildlife and drained water. Can it be taken down?," 15 Apr. 2021 Early in the pandemic, widespread shortages of P.P.E., ventilators, and medications revealed deep vulnerabilities in America’s medical-supply chains. Dhruv Khullar, The New Yorker, "What Will It Take to Pandemic-Proof America?," 15 Apr. 2021 Paskale said cycling has deep roots in Wethersfield, including several bike clubs at the high school and in town, and that the proceeds from various fundraising efforts tied to the event will benefit the cycling community. Steven Goode, courant.com, "Wethersfield’s Bikes on Main welcomes spring and people back to downtown," 15 Apr. 2021 So consumers went looking for chest freezers and deep freezers beginning in March and April, only to find they were sold out or backordered. USA Today, "Before the pandemic ketchup squeeze: A year of COVID-19 product shortages and the items we struggled to find," 15 Apr. 2021 Recent Examples on the Web: Adverb Zane Denton and Drew Williamson also went deep in the first Alabama-Auburn game since 2019. Michael Casagrande | Mcasagrande@al.com, al, "Alabama baseball walks off Auburn in 10th," 16 Apr. 2021 What makes the Greyhounds work so well is Fritz’s ability to play the ball deep in the attack. David Hinojosa, San Antonio Express-News, "High-scoring trio provides Boerne's firepower," 15 Apr. 2021 With traumatic brain injuries, including concussions, the damage typically occurs deep in the brain, where the connections between neurons are stretched, and this may have been what happened to Hatcher. Tracy Ross, Outside Online, "My Son Fell While Skiing. Then His Mind Went Blank.," 12 Apr. 2021 The wide receiver corps shows the potential to go deep. Eric Hansen, The Indianapolis Star, "Notre Dame at mid-spring: Surges by Houston Griffith, Cam Hart are needed signs of progress," 11 Apr. 2021 Rule 5 draftee Mac Sceroler, who pitched 2 ⅔ hitless innings in his major league debut, got the first out of the frame behind López before allowing another three-run homer by Rafael Devers, who went deep in each game of the series. Nathan Ruiz, baltimoresun.com, "Orioles allow six homers, including three from J.D. Martinez, in 14-9 loss as Red Sox complete sweep," 11 Apr. 2021 Especially considering that after a lackluster 7-for-24 performance in the first half (29.2%), Utah went a positively encouraging 11 of 26 (42.3%) from deep in the second. Eric Walden, The Salt Lake Tribune, "Donovan Mitchell says the Utah Jazz have some ‘little things’ to fix. Here’s a look at some of them.," 11 Apr. 2021 Stevie Kennedy-Gold, collection manager for amphibians and reptiles, makes occasional appearances, filming from a chamber deep in the museum, full of jars of salamanders and snakes. Washington Post, "A printing press operator and a snail expert? These museum workers have become unlikely TikTok stars.," 10 Apr. 2021 Roxbury is a lovely little town deep in the Catskills, quieter than most of the upstate towns frequented by city folk. Jenny Xie, Curbed, "‘Chief Pencil Lady’ Caroline Weaver’s Week in Zillow Saves," 9 Apr. 2021 Recent Examples on the Web: Noun Dru Mathis returns from the two-deep and Justin Flowe is back after tearing his meniscus. oregonlive, "Oregon Ducks inside linebacking corps returns most top end talent in Pac-12," 31 Mar. 2021 With four edge signees not arriving until after the spring, how the 15 practices go will indicate much of the way the two-deep will look in the fall. oregonlive, "Kayvon Thibodeaux gives new Oregon Ducks defensive coordinator Tim DeRuyter flexibility on the edge," 31 Mar. 2021 This leads us to the University of Utah, which released its initial spring two-deep on Monday ahead of the team’s first spring practice later in the afternoon. Josh Newman, The Salt Lake Tribune, "An early look at the Utes quarterback options, and Whittingham talks about vaccines as spring practice starts," 15 Mar. 2021 With a deep of a roster as any in the area, look for Capital Prep (10-0) to be the favorites in the CRAL. Shawn Mcfarland, courant.com, "Top boys basketball players, teams and storylines from Week 5: Who are the top teams to watch ahead of conference tournaments?," 15 Mar. 2021 That doesn’t necessarily mean Grayes fits into the receiver two-deep in 2022 and beyond. Nathan Baird, cleveland, "What Kyion Grayes’ commitment means for Ohio State football: Buckeye Recruiting," 28 Feb. 2021 Roye did this against a backdrop of a crew deep-cleaning the Chase Center floor and wiping the backboards. Rusty Simmons, San Francisco Chronicle, "Warriors' TV, radio crews alone at the mic in empty arenas and studios," 18 Feb. 2021 The question is whether Miller must wait on the edge of the two-deep a la Chase Young in 2017, or whether his talents push for a bigger share of snaps immediately. Nathan Baird, cleveland, "Predicting Ohio State football’s defensive depth chart for 2021," 21 Jan. 2021 Garcia was part of a talented Oregon State outside linebacker corps, and was unable to crack the two-deep for most games the past two seasons. oregonlive, "Oregon State junior linebacker Isaac Garcia announces he’s going into the NCAA transfer portal," 5 Jan. 2021

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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Time Traveler for deep

Time Traveler

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

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Statistics for deep

Last Updated

18 Apr 2021

Cite this Entry

“Deep.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deep. Accessed 21 Apr. 2021.

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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

Nglish: Translation of deep for Spanish Speakers

Britannica English: Translation of deep for Arabic Speakers

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