There are 2 main definitions of vuln in English:

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vuln 1

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[with object] Heraldry
Wound: the crest depicts a pelican vulning itself
More example sentences
  • A dragon and on its back a pelican vulning herself all Proper.
  • A stag standing vulned in the back with an arrow proper.


Late 16th century: formed irregularly from Latin vulnerare 'to wound'.

Definition of vuln in:

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There are 2 main definitions of vuln in English:

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vuln 2 Syllabification: vuln

Entry from US English dictionary


A vulnerability, especially one associated with computer security: the total of 10 vulns discovered are described as highly critical
More example sentences
  • There is a potentially troublesome denial of service risk linked to a vuln in the Linux 2.4 kernel, concerning the cacheing of routing information.
  • In tests performed on corporate sites between the start of February and May 20, NTA Monitor found the vuln present in 58 per cent of sites using this software - more than six months after the flaw was widely reported.
  • The networking giant says the vuln is yet to be maliciously exploited, to the best of its knowledge.

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