useful · adjective /ˈjuːs.fəl/
Word family
Nouns: usage, use, misuse, usefulness, user, disuse
Adjectives: reusable, used, unused, useful, useless, disused
Verbs: use, misuse, reuse
Adverbs: usefully
useful
A2 helping you to do or achieve something
Dictionary examples:
useful information/advice
A good knife is probably one of the most useful things you can have in a kitchen.
Learner example:
It has a camera and it is very useful. (Key English Test; A2; Turkish)
come in useful
C2 to be useful and help someone do or achieve something, especially when there is nothing else to help them
Dictionary example:
You should keep that paint - it might come in useful.
Learner example:
However, I take great ex[c]eption to the view that much of our school education is a waste of time because everything we learn at school might come in useful later during our adulthood. (Certificate of Proficiency in English; C2; Greek)
