There are 2 main definitions of vuln in English:

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vuln 1

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verb

[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.

Origin

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

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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

noun

A vulnerability, especially one associated with computer security: the total of 10 vulns discovered are described as highly critical

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