useful

 
Pronunciation: /ˈjuːsfʊl, -f(ə)l/

adjective

  • able to be used for a practical purpose or in several ways: aspirins are useful for headaches
  • British informal very able or competent in a particular area: a useful pace bowler

Phrases

make oneself useful

do something that is of some value or benefit to someone: make yourself useful—get Jenny a drink

Derivatives

usefully

adverb