I was wondering is there an English or American metaphor or phrase to say it has been called this way for a reason? Suppose I want to say this

The private key is called private for a reason!

Is there an expression that sounds more like a native!

  • 2
    '... for a reason' is very natural/idiomatic in English.
    – Mitch
    Commented Aug 17, 2021 at 14:06

2 Answers 2


The clue is in the name.

A fixed expression (too transparent to be an idiom), with over 8.5 million hits on Google.

Some examples:

  • The Clue is in the Name. Was ever a whisky better named than Rosebank? It has always been considered a fragrant single malt .... [Rosebank Distillery]

  • John West No Drain Tuna: The clue is in the name [John West]

  • 'Private member club'. The clue is in the name. Private clubs, and hence club dining outlets, are not open to the public. Privacy – perhaps better expressed as exclusivity – is one of the primary reasons members join in the first place .... [T Tassitano; RSM] [tweaked]


The phrase self-explanarory comes to mind.

"private key" is a self-explanatory term.

  • "easy to understand without explanation" 1
  • "understandable without explanation; self-evident" 2

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