sis

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Proper noun

1. {{lb|en|British}} {{initialism of|en|w:Secret Intelligence Service}}.
2. {{initialism of|en|w:Schengen Information System}}.

Noun

1. {{initialism of|en|second impact syndrome}}.
2. {{initialism of|en|[[snow]] [[immersion]] [[suffocation]]}}.
3. {{lb|en|education}} {{initialism of|en|[[student]] [[information system]]}}.
4. {{initialism of|en|supervised injection site}}.
5. {{acronym of|en|share-in-savings}}.
6. {{lb|en|patent law}} {{abbr of|en|[[supplementary]] [[international]] [[search]]}}.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.