out of service
/ˌaʊtəv sˈɜːvɪs/
/ˌaʊɾəv sˈɜːvɪs/
Word family
- servicenounA2
- in serviceidiomB2
Synonym discussion
Sense: idiom/1
'Out of service' is often used for public equipment, vehicles, facilities, or systems that people normally expect to use. 'Out of order' is especially common for a broken machine. 'Unavailable' is broader and may simply mean something cannot be used right now. 'Not operating' is a plain descriptive phrase.