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online (EN)
adjective, adverb

adjective “online”

base form online (more/most)
  1. connected to the Internet
    I'll be online tonight, so I can reply to your email.
  2. available through the Internet
    I prefer to read online newspapers.
  3. connected to a network
    The database is online and can be accessed by all departments.
  4. active or operational
    The new power plant is online and supplying electricity.

adverb “online”

online
  1. while connected to the Internet
    She works online and communicates with clients via email.