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having a lot of effect or influence
scalable systems, software, or technologies continue to work well when they are used on a large scale or by many people
helpful for doing or achieving something
something that is efficient works well and produces good results by using the available time, money, supplies, etc. in the most effective way
attractive or impressive, and producing a definite effect
very useful and important
useful, or providing help
working correctly and having the right effect
if something is worthwhile, it is worth the time, money, or effort that you spend on it
very powerful and effective
a small electronic device which is taken into shops and links individual customers to advertisements …
an arrangement in which two people who have never met before spend some time together, in order...
the act or practice of telling the future using random items such as playing cards
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Free thesaurus definition of useful and effective and working correctly from the Macmillan English Dictionary - a free English dictionary online with thesaurus and with pronunciation from Macmillan Publishers Limited.