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Definition of deep

deep

/diːp/
deep

Adverb:deeply
•
Plural:deeps
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deep Lexical Profile

deep Game Scores & Validity

• adjective

1

Extending far down from the top or surface, or far inward from an outer edge or opening.

Example

"The hikers carefully crossed the narrow bridge spanning the deep canyon."


2

Very intense, extreme, or profound in degree, feeling, or quality.

Example

"She expressed her deep gratitude to the medical team for their tireless care."


3

intellectually complex, philosophical, or difficult to understand fully.

Example

"The professor's lecture raised several deep questions about human consciousness."


4

Low in pitch and resonant in tone (of a sound or voice).

Example

"His deep voice echoed clearly across the crowded auditorium."


5

Dark, rich, and vivid in hue or saturation (of a color).

Example

"The evening sky turned a deep shade of crimson just after sunset."

Synonyms
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Antonyms
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• adverb

1

Far down, far in, or to a great depth or extent in space or time.

Example

"The miners had to dig deep beneath the earth's surface to reach the mineral vein."

• noun

1

The sea or ocean, especially its vast, deep, and unexplored regions (usually preceded by 'the').

Example

"Marine biologists use remotely operated vehicles to study bioluminescent creatures of the deep."

Synonyms
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Antonyms
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Word Nuance & Usage

As an adverb, 'deep' is primarily used for physical distance, spatial extent, or time (e.g., 'dig deep', 'deep into the night'), whereas 'deeply' is preferred for emotional intensity or abstract degree (e.g., 'deeply moved', 'deeply grateful').

• Rhymes for deep

Word Origin & Etymology

From Old English 'dēop', originating from Proto-Germanic '*diupaz' and ultimately from the Proto-Indo-European root '*dʰewb-' meaning 'deep' or 'hollow'.

Cite this Entry


Wordmom. (2026). Definition of Deep. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/deep
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