useful

Helping you do something or giving you something you need.

• This map is useful.
• She gave me some useful advice.
• Would this tool be useful for fixing the chair?

How to use it: useful for something/doing something (This bag is useful for carrying books.); useful to someone (The notes were useful to everyone.); useful to do something (It is useful to keep a spare key.)

Similar words: helpful, handy, practical

Opposites: useless

Common phrases: useful information, useful for something, useful to someone, useful advice