Wordnet 3.0
ADJECTIVE (2)
1.
not on a regular route of a transportation system;
- Example: "an off-line ticket office"2.
not connected to a computer network;
- Example: "off-line resources"
The Collaborative International Dictionary of English v.0.48:
off-line \off-line\ adj.
1. (Computers) Not connected; -- of computers or computer
peripherals normally connected or intended to be connected
to other computers by a communications line; as, we can't
print the document because the printer is off-line.
[Narrower terms: disconnected, not ready, off;
unconnected ] {on-line
Syn: offline, off line(predicate).
[WordNet 1.5]
2. Hence: (fig.) Outside of or after a meeting or formal
discussion; as, we can discuss the details off-line; -- a
term used at meetings and conferences to suggest
postponing detailed discussion of a topic so as not to
occupy the time of a large group most of whom may not be
interested.
[PJC]
WordNet (r) 3.0 (2006):
off-line
adj 1: not on a regular route of a transportation system; "an
off-line ticket office" [ant: on-line, online]
2: not connected to a computer network; "off-line resources"
[ant: on-line, online]
The Free On-line Dictionary of Computing (30 December 2018):
off-line
(Or "offline")
1. Not directly connected to the computer (e.g., an off-line
tape drive), or with connection suspended ("take the
printer off-line").
Contrast background, on-line.
2. Not now or not here. "Let's take this discussion
off-line." Specifically used on Usenet to suggest that a
discussion be moved off a public newsgroup to e-mail.
See also off-line world.
[Jargon File]
(1996-02-02)