Xss

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
Abbreviation of cross-site scripting. Internet, abbreviation, alt-of, uncountable

Synonyms

cross-site scripting

Etymology

The X denotes cross. CSS was avoided because of the potential for confusion with the existing Web technology named cascading style sheets.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.