Offline may refer to any of the following:
1. A term used to describe when a connection is broken or disconnected. When a device is offline, it is unable to send or receive information through that device. For example, if your printer is turned off, it is considered offline and cannot print anything. A printer may also be offline if it is a network printer and cannot be found or the data cable connecting the printer is not properly connected.
Should I use "offline," "off-line," or "off line" in my writing?
2. Offline is a type of game play where a user is not connected to another computer or server and is only playing with NPCs.