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An irreplaceable person, in the context of getting work done.

Is there a word to describe such a person?

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  • 1
    Please add an example sentence. Commented May 31, 2021 at 8:26
  • What's wrong with "irreplaceable"? Please explain in more detail what you're looking for.
    – Stuart F
    Commented May 31, 2021 at 9:12

2 Answers 2

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I think the word you're looking for is:

the most important member of a group or part of a system, that holds together the other members or parts or makes it possible for them to operate as intended

You might also use :

an important person, company, etc. in a particular area of activity:

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Maybe:

Something or someone that is indispensable is so good or important that you could not manage without it, him, or her:

His long experience at the United Nations makes him indispensable to the talks.

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