deep adjective Meaning in the Cambridge Learner’s Dictionary
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Meaning of “deep” - Learner’s Dictionary

deep

adjective
 
 
/diːp/
TOP TO BOTTOM A2 having a long distance from the top to the bottom: The water is a lot deeper than it seems.Measurements in generalHigh, tall and deep
FRONT TO BACK having a long distance from the front to the back: How deep are the shelves?Measurements in general
one metre/6 ft, etc deep B2 one metre/6 ft, etc from the top to the bottom, or from the front to the back: This end of the pool is two metres deep.Measurements in generalHigh, tall and deep
FEELING B2 A deep feeling is very strong: deep affection/regretStrong feelings
SOUND B2 A deep sound is low: a deep voiceTechnical music termsDescribing qualities of the human voice
SERIOUS serious and difficult for most people to understand: a deep and meaningful conversationComplexityDifficult to understand
a deep sleep B2 sleep that it is difficult to wake someone fromSleep and sleeping
COLOUR B1 A deep colour is strong and dark: deep brown eyesThe qualities of colour
take a deep breath B2 to fill your lungs with air: Take a deep breath and relax.Breathing and stopping breathing
deep in thought/conversation giving all of your attention to what you are thinking or talking about, and not noticing anything else →  See also throw sb in at the deep end , be in deep water Paying attention and being carefulCautious and vigilantThinking and contemplatingDeep in thought
(Definition of deep adjective from the Cambridge Learner’s Dictionary © Cambridge University Press)
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