English

Definition of deep adverb from the Oxford Advanced Learner's Dictionary

  

deep

 adverb
adverb
BrE BrE//diːp//
 
; NAmE NAmE//diːp//
 
 
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  •  (deeper, deepest) deep (below, into, under, etc.) a long way below the surface of something or a long way inside or into something Dig deeper! The miners were trapped deep underground. whales that feed deep beneath the waves He gazed deep into her eyes. They sat and talked deep into the night (= until very late). deep in the forest He stood with his hands deep in his pockets. Which Word?deep / deeply The adverbs deep and deeply can both mean ‘a long way down or into something’. Deep can only mean this and is more common than deeply in this sense. It is usually followed by a word like into or below:We decided to go deeper into the jungle. Deeply usually means ‘very much’:deeply in love deeply shocked. You can use deep down (but not deeply) to talk about a person’s real nature:She can seem stern, but deep down she’s a very kind person. She can seem stern, but deeply she’s a very kind person.
  • Word Familydeep adjective adverbdeeply adverbdeepen verbdepth noun Word Origin Old English dēop (adjective), dīope, dēope (adverb), of Germanic origin; related to Dutch diep and German tief, also to dip.Idioms
    1. 1  if you know something deep down, you know your true feelings about something, although you may not admit them to yourself Deep down I still loved him.
    2. 2  if something is true deep down, it is really like that, although it may not be obvious to people He seems confident but deep down he's quite insecure.
      dig deep (into something)
       
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    1. 1to search thoroughly for information You'll need to dig deep into the records to find the figures you want.
    2. 2to try hard to provide the money, equipment, etc. that is needed We're asking you to dig deep for the earthquake victims.
    dig (deep) in/into your pocket(s), savings, etc.
     
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    to spend a lot of your own money on something
     (of emotions, beliefs, etc.) to be felt in a strong way, especially for a long time Feelings about the death of a parent are bound to go deep. Dignity and pride run deep in this community. (saying) a person who seems to be quiet or shy may surprise you by knowing a lot or having deep feelings
    See the Oxford Advanced American Dictionary entry: deep