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use·ful

useful

 
 
pronunciation:
yus fl
features:
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part of speech: adjective
definition: able to be used in a helpful, practical, or effective way.
We have a useful book that tells which mushrooms are safe to eat.
synonyms:
handy, practical, usable
antonyms:
useless, worthless
similar words:
advantageous, beneficial, constructive, convenient, effective, functional, helpful, productive, profitable
derivations: usefully (adv.), usefulness (n.)
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  knowledge, technology
Word Parts  About this feature
The word useful contains the following parts:
us, ut, util Latin root that means use
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-ful1 Old English adjective-forming suffix that means full of
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The suffix -ful1 attaches to native English nouns to form adjectives.