Definition of deep in English:

deep

Syllabification: deep
Pronunciation: /dēp
 
/

adjective

1Extending far down from the top or surface: a deep gorge the lake was deep and cold
More example sentences
  • The mountain scenery was totally awesome with spectacular peaks, glacial rivers and deep mountain gorges.
  • Since it was built over a deep gorge, it was well protected against destructive forces.
  • Rocky gullets of white water open out into deep gorges where salmon lie waiting for water to continue their upstream journey.
Synonyms
cavernous, yawning, gaping, huge, extensive; bottomless, fathomless, unfathomable
1.1Extending or situated far in or down from the outer edge or surface: a deep alcove deep in the woods
More example sentences
  • Why is it impossible to pump water from very deep in the ground with a surface pump?
  • The grave generally is located in a riverbed or somewhere deep in the forest.
  • Last September we went to the Italian Grand Prix at Monza, just in the general admission section which was deep in the woods.
1.2 [predicative] (After a measurement and in questions) extending a specified distance from the top, surface, or outer edge: the well was 200 feet deep
More example sentences
  • Adding more debt to a debt ridden business is like adding a sledge to the back of a man trudging through six foot deep snow.
  • It was a problem getting this water to the surface as the average well was 100 feet deep.
  • What are you going to do when the ground below you suddenly disappears and a 100 meter deep hole opens up?
Synonyms
in depth, downward, inward, in vertical extent
1.3 [in combination] As far up or down as a specified point: standing waist-deep in the river
1.4 [predicative] In a specified number of ranks one behind another: [in combination]: they were standing three-deep at the bar
More example sentences
  • Sadly, without ranks of police four deep, the football fans will rip out each other's throats.
  • It was three-deep at the bar, with icy platters of oysters and glasses of sparkling wine littering the marble top.
  • Organized ranks, five deep and five wide, marched right below him.
1.5Taking in or giving out a lot of air: she took a deep breath
More example sentences
  • She took a deep breath and swallowed the sobs that were rising in her throat.
  • Once she was settled in with an arm slung over his chest, she sighed a deep breath of relief.
  • Michael sighed, leaning his head back as he took a deep breath to calm himself.
1.6 Baseball Far back in the outfield: his first pitch was hit into deep left field
More example sentences
  • John Olerud doubled to deep centerfield while the Twins manager summoned Joe Nathan.
  • It's hard to tell from the bleachers whether pitches are balls or strikes, and you lose sight of balls hit to the deep outfield.
  • After fielding the ball, however, the pitcher threw it way over the first baseman into deep right field.
2Very intense or extreme: she was in deep trouble a deep sleep a deep economic recession
More example sentences
  • When citizens lack confidence in the basic institutions of democracy, the nation is in very deep trouble.
  • We think that humanity could be heading for deep trouble unless we take action very soon.
  • They are in deep, deep trouble, and the economy will get worse and worse.
Synonyms
sound, heavy, intense
2.1(Of an emotion or feeling) intensely felt: deep disappointment
More example sentences
  • Personal relationships are full of deep feelings and emotions but you need to wait for the right time to expose them.
  • This place is home, if anywhere is, and I love it with a deep passion.
  • It was a deep feeling of dissatisfaction, and it was making ordinary people do very crazy things.
Synonyms
intense, heartfelt, wholehearted, deep-seated, deep-rooted; sincere, genuine, earnest, enthusiastic, great
2.2Profound or penetrating in awareness or understanding: a deep analysis
More example sentences
  • I must also take notice of her deep understanding of Middle Eastern affairs, despite the fact that she has never lived there.
  • They like to have a deep understanding of how to do business.
  • Those who worked with him at the time have commented on his deep understanding of Canada and Canadian issues.
Synonyms
profound, serious, philosophical, complex, weighty; abstruse, esoteric, recondite, mysterious, obscure; intelligent, intellectual, learned, wise, scholarly; discerning, penetrating, perceptive, insightful
2.3Difficult to understand: this is all getting too deep for me
More example sentences
  • Nothing deep or philosophical, you understand, just: how is this going to get better?
  • They understood something very deep that we more secular types never learned.
  • Do you understand what deep and metaphysical things he is trying to say?
Synonyms
2.4 [predicative] (deep in) Fully absorbed or involved in (a state or activity): they were deep in their own thoughts
More example sentences
  • She was taking very little bites of food and looked very deep in thought.
  • He looked really deep in thought and sad at the same time.
  • Then he'd go off and make himself a cup of coffee still deep in thought, sometimes forgetting to add sugar and sometimes adding too much.
Synonyms
rapt, absorbed, engrossed, preoccupied, immersed, lost, gripped, intent, engaged
2.5(Of a person) unpredictable and secretive: that Thomas is a deep one
More example sentences
  • I'm a pretty deep person, and cruising gives me a chance to be alone and think.
  • I've always wanted to meet you, you seem like such a deep person with a beautiful soul.
  • As you would expect from someone who has made a living in the movie capital for more than 30 years, he is neither a subtle nor a very deep man.
3(Of sound) low in pitch and full in tone; not shrill: a deep, resonant voice
More example sentences
  • At his urging I strummed the guitar, closing my eyes as a gorgeous deep sound resonated.
  • This means that there are additional deep sounds which cannot be heard.
  • He thought he heard a rumbling sound, a deep voice coming from somewhere far away.
Synonyms
low-pitched, low, bass, rich, powerful, resonant, booming, sonorous
4(Of color) dark and intense: a deep pink
More example sentences
  • Although the main stem is still thin and whippy, it is an attractive, shiny, deep purple in colour.
  • The colours are deep and rich and help set an operatic mood and tone for almost every scene.
  • The sky had become a dark shade of indigo, tinged with the remnants of deep magenta.
Synonyms
dark, intense, rich, strong, bold, warm

noun

(the deep) literary Back to top  
1The sea: denizens of the deep
More example sentences
  • It will be recalled that waters for the biblical flood came from opened "windows of heaven" and broken-up "fountains of the deep."
1.1 (usually deeps) A deep part of the sea: the dark and menacing deeps figurative the deeps of her imagination
More example sentences
  • The sea becomes a field with the clear blue separations of the deeps.
  • Later, a couple swam into view, apparitions emerging from the black deeps beyond the porch lights.
  • There's also a chance of seeing blue manta, the dark, silent deltas of the deep.

adverb

Back to top  
1Far down or in; deeply: traveling deep into the countryside
More example sentences
  • The narrator gets off a train in a deserted countryside and walks deep into the forest, where he makes camp and goes to sleep.
  • The peroxide, he says, wouldn't penetrate very deep beneath the surface.
  • Some short trails lead to viewpoints; longer and more difficult trails penetrate deep into the forest and wilderness.
Synonyms
far down, way down, to a great depthfar, a long way, a great distance
1.1(In sports) distant from the start of a play or the forward line of one’s team: the defense played deep
More example sentences
  • By drifting from side to side and dropping deep he found space from which to torment the other team.
  • He will have to throw deep a few times early to keep the safeties out of the box.
  • In this game Royal made the mistake of either kicking too deep or not chipping.

Origin

Old English dēop (adjective), dīope, dēope (adverb), of Germanic origin; related to Dutch diep and German tief, also to dip.

Phrases

the deep end

The end of a swimming pool where the water is deepest.
More example sentences
  • Others dived nimbly off the diving board into blue water of the deep end of the huge swimming pool.
  • At the sound of approaching footsteps, frogs hopped into the filthy, dark water at the deep end of the swimming pool.
  • Hang on, that's about the depth of the deep end of the local swimming baths.

go off (or go in off) the deep end

informal Give way immediately to an emotional outburst, especially of anger.
More example sentences
  • I just went off the deep end and I said, ‘Hey, this is going too far’.’
  • Some Bulgarian leaders, and its media, went off the deep end after a Bulgarian gymnastics hopeful was judged worthy of silver, but not gold.
  • If anyone out there thinks the Globe & Mail is biased, the Calgary Herald, Calgary Sun and National Post have absolutely gone off the deep end since the election.
chiefly US Go mad; behave extremely strangely: they looked at me as if I had gone off the deep end
More example sentences
  • My mother has always been crazy but she finally went off the deep end and severed ties with me and her mother who I stay with.
  • I don't know if she's just goofing around or if she's totally gone off the deep end.
  • And pretty soon the fridge was empty and we're sitting there in the kitchen, laughing so hard about heart disease and strokes that I thought we'd both gone off the deep end.

go (or run) deep

(Of emotions, beliefs, etc.) be strongly and wholeheartedly felt or held: his passion runs deep
More example sentences
  • His allegiance to the cause runs deep.
  • Loyalty to a sibling ran deeper than loyalty to a spouse.
  • I know that Dad's mental scars run deeper.

in deep

informal Inextricably involved in or committed to a situation: he knew that he was in deep when his things began to proliferate in her apartment
More example sentences
  • The shooting began to sink in and he realised he was in deep, way over his head.
  • You're in deep in the system, in its fouled blood, in its creaking bones, in its edgy nerves.
  • Four likely London lads are in deep to a mobster and try to find ways to come up with the dosh.

in deep water (or waters)

informal In trouble or difficulty: he landed in deep water when he began the affair
More example sentences
  • Many Christians only think of God when they are in deep water, they get in trouble and they scream for God, they get out of trouble, and they run back to their sin and rebellion.
  • I've been in deep water and he hasn't been in deep water and we'll see how he handles that.
  • With his manipulative talents, he landed his opponent in deep waters.

jump (or be thrown) in at the deep end

informal Face a difficult problem or undertaking with little experience of it.
More example sentences
  • We were thrown in at the deep end when we won a major global project with a London bank and we needed to get moving quickly.
  • A lot of players were thrown in at the deep end, me being one of them.
  • I was thrown in at the deep end and they put me on the Finance Committee.

Derivatives

deepness

noun
More example sentences
  • There's a deepness in this song that I've only glimpsed in other works.
  • There weren't any words to describe the deepness of his feelings.
  • Her round figure and the deepness of her voice reminded him of the images of the kinds of mothers who were kind and understanding from storybooks.

Definition of deep in:

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Pronunciation: vɪˈtjuːpəreɪt
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