S.i.
name, noun
name, noun ·Rare ·Advanced level
Definitions
Noun
- 1 Initialism of statutory instrument. Australia, Canada, UK, abbreviation, alt-of, initialism
"Civil Procedure Rules 1998, S.I. 1998/3132 (L. 17)"
Proper Noun
- 1 Synonym of SI (International System of Units)
Synonyms
All synonymsExample
More examples"Civil Procedure Rules 1998, S.I. 1998/3132 (L. 17)"
Etymology
From French S.I..
More for "s.i."
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.