get to the bottom of


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get to the bottom of (something)

To determine the cause or source of something or solve the mystery of something. What is causing this water leak? Has anyone gotten to the bottom of it yet? I have every confidence that our detectives will get to the bottom of this crime.
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get to the bottom of something

Fig. to get an understanding of the causes of something. We must get to the bottom of this problem immediately. There is clearly something wrong here, and I want to get to the bottom of it.
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get to the bottom of

Find the basic underlying quality or cause of something. For example, He was determined to get to the bottom of the problem. [Late 1700s] Also see at bottom.
See also: bottom, get, of

get to the bottom of

find an explanation for (a mystery).
See also: bottom, get, of