The meaning of USEFUL is capable of being put to use; especially : serviceable for an end or purpose. How to use useful in a sentence.

USEFUL definition: 1. effective; helping you to do or achieve something: 2. the time during which something or…. Learn more.

USEFUL definition: being of use or service; serving some purpose; advantageous, helpful, or of good effect. See examples of useful used in a sentence.

useful, adj. & n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

3 days ago · Adjective useful (comparative more useful or usefuller, superlative most useful or usefullest) Having a practical or beneficial use.

WordReference Random House Unabridged Dictionary of American English © 2025 use•ful (yo̅o̅s′ fəl), adj. being of use or service; serving some purpose; advantageous, helpful, or of good effect: a useful …

Definition of useful adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

If something is useful, you can use it to do something or to help you in some way.

1. being of use or service; serving some purpose; advantageous, helpful, or of good effect: a useful member of society. 2. of practical use; producing material results; supplying common needs.

Useful invention. from the GNU version of the Collaborative International Dictionary of English. adjective Full of use, advantage, or profit; producing, or having power to produce, good; serviceable for any …