In the event that our primary data center became unavailable for any reason, we would transition to a separate back - up location, where account access would be made available. (schwab.com)
This was a back up dress when my original pick became unavailable in the 11th hour. (renttherunway.com)
This will come in handy if she needs a special diet at any time, or if her «favorite» food suddenly becomes unavailable. (thehappypuppysite.com)