There are 2 main definitions of sig in English:

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sig 1

Line breaks: sig

noun

Computing , informal
A short personalized message at the end of an email.
Example sentences
  • How do I tell a friend her email sig is really annoying?

Origin

1990s: abbreviation of signature.

Definition of sig in:

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There are 2 main definitions of sig in English:

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SIG 2 Line breaks: SIG

abbreviation

Computing

Definition of sig in:

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