online

adj. (Computers) connected, connected to another computer or to the Internet; available through the Internet

The terms on-line and off-line have specific meanings with respect to computer technology and telecommunication. The concepts have however been extended from their computing and telecommunication meanings into the area of human interaction and conversation.
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adj. online, connected, connected to another computer or to the Internet; available through the Internet

adj. on line, online, connected to the Internet, connected to another computer or to the Internet (Computers)

n. on-line, on line, connected to the Internet