in deep

Seriously involved; far advanced. For example, He was in deep with the other merchants and couldn't strike out on his own , or She used her credit cards for everything, and before long she was in deep .
in deep water . Also, in over one's head . In trouble, with more difficulties than one can manage, as in The business was in deep water after the president resigned , or I'm afraid Bill got in over his head . These metaphoric expressions transfer the difficulties of being submerged to other problems. The first appears in Miles Coverdale's 1535 translation of the Book of Psalms (68:13): “I am come into deep waters.” The second, which also can signify being involved with more than one can understand, dates from the 1600s. Also see over one's head .

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Example Sentences

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The winners of the Kentucky Derby and Preakness Stakes hooked up in a much-anticipated rematch of the Kentucky Derby with the same result — Sovereignty running down Journalism in deep stretch to etch his name in history as the 52nd winner of two legs of the Triple Crown.

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And, instead of putting up primary challengers against incumbents in deep blue districts, the Welcome Party would support candidates in purple districts where they think a more liberal candidate, who might prevail in a Democratic primary, would be at a disadvantage in a general election and might also be a mismatch for the district.

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Another finding that may cast doubt on the idea that DMS equates to the presence of life is the discovery of dimethyl sulfide, which here on Earth makes the sea smell like the sea, drifting around in deep space between the stars.

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US Banks were also in deep distress.

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One of the recent dramatic examples is AOC and Bernie going to state after state, often in deep red districts, and getting huge turnouts.

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indeed indef.

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