utility noun
1 usefulness
ADJ. great, high | low | social He argued that the arts have great social utility.
VERB + UTILITY have
PREP. of … ~ This computer is of low utility for the home user.
2 service provided for the public
ADJ. public, state-owned | privatized | electricity, water a privatized electricity utility
You can also check other dicts: utility (English, 中文解释 ), wordnet sense, Collins Definition