1. out of service - Adjective
2. out of service - Phrase
out of service
Not available for use.
This train is going out of service at the next station.
The sign that said the elevator was "temporarily out of service" had been there for months.
out-of-service (not comparable)
Not working, not functioning, broken; currently unavailable.
out-of-service
Happiness comes out of contentment, and contentment always comes out of service. Harbhajan Singh Yogi
A backup van was in use on the day of the incident because the primary van was out-of-service. Source: Internet
Most of this equipment was later incorporated into the other three orbiters during out-of-service major inspection and modification programs. Source: Internet