automatically
US /ˌɑː.t̬əˈmæt̬.ɪ.kəl.i/
UK /ˌɑː.t̬əˈmæt̬.ɪ.kəl.i/

1.
without human intervention; by itself
:
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The door opens automatically when you approach.
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The system updates automatically every night.
2.
as a matter of course; inevitably
:
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If you don't pay the bill, the service will be cut off automatically.
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When you sign up, you are automatically added to our mailing list.