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Definition deep in British English

deep adjective

adjective
/diːp/
1

going a long way down from the top or the surface

Example

The river is quite deep here.

Example

an area of high hills and deep valleys

Synonyms and related words
1.1

used for saying or asking the distance from the top or surface of something

Example

How deep is the snow?

Example

The pond needs to be at least a metre deep.

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1.2

going a long way into something

Example

He had a deep cut on his forehead.

Example

By this time we were deep inside enemy territory.

Example

a small cabin deep in the woods

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2

going a long way back from the front of something

Example

The shelves need to be a bit deeper than that.

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3

a deep feeling or emotion is very strong

Example

I do feel a very deep sympathy for them all.

Example

a feeling of deep gratitude

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4

a deep sound is low

Example

I recognized George's deep voice on the other end of the phone.

Example

a deep roaring sound

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5

a deep colour is dark and strong

Example

a beautiful deep red

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6

breathing a lot of air into or out of your body

Example

Take a few deep breaths to calm yourself down.

Example

He looked at Rosie and gave a deep sigh.

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7

a deep sleep is one that you do not wake up easily from

Example

She fell into a deep sleep.

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8

someone who is deep has very serious thoughts, ideas, or feelings

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8.1

something that is deep involves very serious thoughts, ideas, or feelings

Example

We had a very deep conversation about love and death.

Synonyms and related words
Definition deep in British English