Definitions of on-line
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connected to a computer network or accessible by computer“an on-line database”
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synonyms:
online
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connected, machine-accessible
stored in, controlled by, or in direct communication with a central computer
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Antonyms:
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off-line
not connected to a computer network
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connected, machine-accessible
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on a regular route of a railroad or bus or airline system
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being in progress now
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