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deep

deep

6 7.4
A very low, steep part of the ocean floor
  • noun
  • /diːp/
translation icon : abismo
  • Explorers believe that the treasures of the deep may still be hidden in shipwrecks.
  • Challenger Deep
  • reach the Challenger Deep

He said this, Launch out into the deep and let down your Nets.

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Examples

  • A sudden vision of the deeps beneath the city, alive with a million worms, with buried things (29).

    Academic text (2018)
  • The watery monster stirring behind the bed curtain releases another burbling, wracking groan from the deeps.

    Fiction book (1990)
  • We are in the deep ocean now, So what?

  • We spotted them way down deep for about two seconds.

  • THE FIELD MUSEUM Through January 16, 2012: "Whales: Giants of the Deep."

    Academic text (2011)
  • And I make this movie about you and the sharks, and I call it Mysteries of the Deep.

  • The race that had come to an unwanted new home in the deeps watched the poor ship die and felt pity.

    Fiction book (2001)
  • Night after night, a ghostly horn echoed in the Deep.

  • No, these explorers aren't setting out to explore the deeps of space, but the deep beneath the Earth's surface.

    Blog text (19)
  • Marine scientists study the unique creatures that inhabit the deep of the ocean.

Synonyms

trench
vsdeep
  • Specialized
14 6.8

A very deep part of the ocean floor with steep sides where one plate moves under another

is the broader term for the ocean's lowest area, not its formation
depression
vsdeep
  • Specialized
11 5.3

A low area of land that forms a hollow

refers specifically to the ocean's lowest place, not general land hollows
deep sea
vsdeep
6 3.6

The deepest parts of the ocean far below the surface where little or no sunlight reaches

is the precise term for the ocean's lowest location, not general offshore areas
3 4.7

The deepest parts of the ocean far below the surface

is used for the single lowest place rather than broad ocean regions
ocean bottom
vsdeep
3 3.7

The lowest part of the sea where sand and mud rest

is the broader name for that lowest area, not only the seabed
depths
vsdeep
1 3.9

The lowest parts of a place or a feeling

is the concrete geographic name for the ocean's single lowest spot
deepwater
vsdeep
1 4.0

The deep part of a sea or lake away from the shore

denotes the singular lowest ocean place rather than distant offshore waters
oceanic abyss
vsdeep
  • Specialized
8.8

A very deep, steep place on the ocean floor where Earth's plates meet

is the general term for the ocean's lowest area rather than a landform name

Idioms

deep down
  • Informal
117 3.5

In your real feelings or beliefs that you do not show

in too deep
  • Informal
12 7.4

Too involved in a problem or situation to get out easily

You must choose between two options that are both bad

1 8.2

To have to do something difficult without preparation

Focusing very seriously on something in your mind

1 7.8

Start a difficult task without much preparation or experience

1 7.8

Put suddenly into a difficult situation without preparation or help

elbow-deep in
  • Informal
6.8

Very involved in an activity, often working with your hands

Deeply stuck in a difficult situation that is hard to leave

To throw something away and stop using it

this is deep
  • Informal
8.7

People say it when something seems very serious or important, often jokingly

Compounds

205 2.2

To breathe in slowly and fully to help you relax

deep space
  • Specialized
25 6.4

An area far beyond the solar system, between stars and galaxies

21 1.7

Cooked by putting food completely into hot oil

deep end
  • Informal
19 5.6

A difficult situation that forces someone new to cope

19 4.0

A person or company with a lot of money to pay for things

15 4.4

A region in the southeastern United States with a long history and strong local culture

14 2.8

A heavy sleep when the body and mind rest and are not aware of surroundings

knee-deep
  • Informal
13 3.9

Very involved in something, like work or problems

13 4.5

Located very far below the sea surface

A strong feeling of closeness between people or toward a place

A strong and complete knowledge of a subject or idea

deep dive
  • Jargon
8 4.1

A detailed look at a topic to learn more about it

6 2.7

A dark, strong red colour that looks rich

6 3.6

The deepest parts of the ocean far below the surface where little or no sunlight reaches

5 4.7

Only on the surface and not deep inside

5 3.1

Water or mud that reaches up to the knees

5 2.9

Up to someone's waist in water or snow

4 4.9

In very deep parts of the sea

4 3.7

A very strong feeling of sadness after a great loss

4 6.9

Very involved in a difficult situation that is hard to manage

4 2.7

A kitchen machine that cooks food by putting it completely into hot oil

4 4.2

A person who spends time on serious, important ideas

3 3.0

At a depth up to the ankles in water, mud, or snow

deep water
  • Informal
3 5.9

A situation that causes serious trouble

2 4.3

A period of very cold weather that lasts several days

2 1.0

A dark shade of brown like chocolate

2 4.9

An eye set far back in the head that makes the eye area look deep and dark

2 6.0

A time when work or activity stops for a long time

A person who dives deep in the sea using special equipment to protect from high pressure

1 7.0

A very strong feeling that reaches deep into your body or heart

1 4.0

A very heavy sleep that is hard to wake from

A strong feeling of worry that lasts a long time and is hard to change

Serious conversation that looks closely at important or difficult ideas

1 3.5

A very cold freezer for keeping food for a long time

Strong anger that stays inside someone for a long time

An electric kitchen machine that cooks food by putting it completely in hot oil

1 2.6

A large electric box that keeps food very cold for a long time

deep kiss
  • NSFW
1 4.1

A long open-mouthed kiss where people touch tongues

deep cut
  • Jargon
1 8.4

A song on an album that is not a hit but loved by fans

deep sleep
  • Specialized
1 3.7

A low power state when a device turns off most parts but can wake quickly

A pie with a deep layer of fruit filling and a top crust

1 1.8

Having a strong, dark shade of pink

Very tired all through your body so you can barely move

At a height that reaches a person's chest

A place where people cross a river with deep water

7.3

A vein deep in the side of the brain that drains blood toward the base of the brain

A remote northern area that has wild natural beauty

A strong emotional effect that something like music or words has on people

deep cervical vein
  • Specialized
5.5

A blood vessel in the neck that drains blood from muscles near the spine

A person or animal with a deep chest that suggests strength

A careful, detailed study of a subject to find important facts

deep supporting fire
  • Specialized
8.8

Fire from heavy guns at enemy targets far behind friendly troops to disrupt supplies and reinforcements

deep temporal vein
  • Specialized
7.9

A vein in the temple area that carries blood away from nearby muscles

8.4

Secretly and carefully planned to reach a goal

deep-lobed
  • Specialized
7.2

Leaves or body parts that have deep cuts making clear rounded sections, like oak leaves

A strong hidden worry that affects how someone thinks or acts

deep-mined
  • Specialized
6.4

Coal taken from mines deep under the ground, not from the surface

deep-fried
  • Slang
8.2

A picture or video edited to make colours and contrast look too strong

A strong long-held belief in the Pope's authority

A custom people have followed for a long time that is hard to change

A belief that people hold for a long time and find hard to change

A strong, intense yellow like a ripe pumpkin

Eyebrows that sit back above the eyes and make the face look intense

A very deep part of the Atlantic Ocean north of Haiti and Puerto Rico

A problem that looks small but does not fix the real cause

How Deep

abyss
79 7.4
trench
  • Specialized
14 6.8
deep
6 7.4
shallow
14 3.3
shore
441 1.0

Surface Forms

deep singular
deeps plural

Etymology

The noun deep comes from old English dēop meaning 'great distance down', and it was used for the deepest parts of the sea. So 'the deep' means the deep ocean or the great depths under the water.