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es·sen·tial

essential

 
 
pronunciation:
ih sen shl
features:
Word Explorer, Word Parts
part of speech: adjective
definition: When something is essential, it is completely necessary or needed.
Water and air are essential to life.
synonyms:
basic, fundamental, necessary, vital
antonyms:
unnecessary
similar words:
central, critical, key, primary, principal
derivation: essentially (adv.)
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