essential
/ɪˈsɛn.ʃəl/ noun C2- A necessary ingredient.
- A fundamental ingredient.
Plural essentials
From the library
“I can assure you,” said Holmes, “that every essential is already known.
“With regard to our transaction, you will no doubt have observed by now that one essential detail is missing.
“I have jotted down the more essential ones upon this sheet of paper, together with a few addresses which you will find of service.
They began by using him as a short-cut, a convenience; now he has made himself an essential.
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