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English definition of “deep”

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 waterPaying attention and being carefulCautious and vigilantThinking and contemplatingDeep in thought
(Definition of deep adjective from the Cambridge Learners Dictionary © Cambridge University Press)
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