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English definition of “log in/on”

log in/on

phrasal verb with log     /lɒɡ/ verb [T] (present participle logging, past tense and past participle logged)
B2 to connect a computer to a system of computers by typing your name and often a password, usually so that you can start workingComputer concepts
(Definition of log in/on from the Cambridge Learner's Dictionary © Cambridge University Press)

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