Meaning of USEFUL in English
use ‧ ful S1 W1 /ˈjuːsf ə l/ BrE AmE adjective
[ Word Family: noun : ↑ usage , ↑ use , ↑ disuse , ↑ misuse , ↑ reuse , ↑ usefulness ≠ ↑ uselessness , ↑ user ; adjective : ↑ reusable , used ≠ ↑ unused , ↑ disused , ↑ useful ≠ ↑ useless , ↑ usable ≠ ↑ unusable ; verb : ↑ use , ↑ misuse , ↑ reuse ; adverb : ↑ usefully ≠ ↑ uselessly ]
helping you to do or get what you want OPP useless :
A little Japanese can be really useful.
The space under the desk is useful for storing CDs.
techniques that could be useful to teachers
Can you come and make yourself useful (=help people to do something) ?
• • •
▪ useful information/advice
She gave me some useful advice.
▪ a useful tip
Their website has some useful tips on selling your home.
▪ a useful way of doing something
Keeping lists of the words you learn is a useful way of remembering vocabulary.
▪ a useful tool
The Internet is a useful tool for investors.
▪ a useful contribution
He played well and made a useful contribution to the team’s performance.
▪ find something useful
Did you find the book useful?
▪ prove useful formal (=be useful)
This equipment could prove useful in testing babies’ hearing.
▪ it is useful to do something
It is useful to practise in front of an audience.
▪ come in useful (=be useful)
The extra income would come in useful.
▪ make yourself useful (=be helpful)
Don’t just stand there – make yourself useful!
▪ serve a useful purpose/function (=be useful)
Sending her to prison would serve no useful purpose.
• • •
▪ useful something that is useful makes it easier for you to do something:
He gave me some useful advice.
a useful thing to know
▪ handy informal useful – used especially about something that is convenient and easy to use:
a handy little booklet
The book is full of handy hints.
I always keep old jars – you never know when they might come in handy (=be useful) .
▪ helpful useful because it helps you to do something:
This drug can be helpful in treating depression.
▪ of use [not before noun] if someone or something is of use, they are useful for you when you are doing something:
I hope you’ll find the book of use.
He wants to be of use.
▪ worthwhile if doing something is worthwhile, it is useful for you and you benefit from doing it:
The training was certainly worthwhile.
a worthwhile experience
It is worthwhile to start by asking ourselves why people get involved in crime.
■ very useful
▪ valuable very useful in helping you do something:
His information was very valuable to the police.
The course was a valuable experience for me.
a valuable contribution
▪ invaluable extremely useful in helping you do something:
His help was invaluable.
The drug could be invaluable for treating cancer patients.
an invaluable experience
▪ indispensable someone or something that is indispensable is so useful and important that you cannot do something without them:
For walkers, a good compass is indispensable.
He became an indispensable part of the team.
an indispensable guide to travelling in Italy
▪ be great for something informal to be very useful for doing something:
The bag is great for taking on holiday.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012