411 REFERENCE · Wiktionary
SI
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Appendix:Variations of "si"
Translingual
Etymology 1
mul fr SI Système international d'unités.
Proper noun
mul Q12457 Système international d'unités or the International System of Units, the latest and usual form of the metric system.
see Appendix on SI Units
Etymology 2
Symbol
1 2 Slovenia 1992
mul SVN ISO 3166-1 alpha-3 alpha-3
English
Etymology 1
en fr SI Système international d'unités.
Proper noun
International System of Units
en Matthew Robinson and Lianne Kolirin The world has just redefined the kilogram w:CNN https://www.cnn.com/2018/11/13/world/kilo-measurement-scli-intl 2018-11-13 The reason for the change to the International System of Measurement (SI) units was that over time the prototype lost atoms and therefore mass because it is “susceptible to damage and environmental factors,” according to the National Physical Laboratory (NPL), which houses Kilo 18, Britain’s copy of Le Grand K. https://web.archive.org/web/20260223063139/https://www.cnn.com/2018/11/13/world/kilo-measurement-scli-intl 23 February 2026
Derived terms
en SI prefix SI unit
Etymology 2
Proper noun
en w:Smithsonian Institution.
en w:Sports Illustrated.
en Oliver Darcy and Liam Reilly Sports Illustrated to avert shutdown as it gets a fresh start under new publisher w:CNN Business https://www.cnn.com/2024/03/18/media/sports-illustrated-new-publisher 2024-03-18 “We have said from the start that our top priorities are to keep Sports Illustrated alive, uphold the legacy of the institution and protect our union jobs. We look forward to discussing a future with Minute Media that does that,” Emma Baccellieri, staff writer for SI and vice chair for the SI Union, said in a statement. https://web.archive.org/web/20260921132950/https://www.cnn.com/2024/03/18/media/sports-illustrated-new-publisher/ 21 September 2026
Noun
~
en electronics en signal integrity.
en technology en systems integration.
en self-injury.
en suicidal ideation.
en fandom slang en self-insertion (of the author into fan fiction).
en mechanical engineering en spark ignition.
en supporting information.
en special intelligence.
en finance en systematic internaliser.
en swarm intelligence.
en synthetic intelligence.
en US politics AI en super intelligence (artificial intelligence).
en-US w:Tyler Cowen Interesting Times podcast ‘A Golden Age of Science’ Brought to You by the White House The New York Times 2026-10-22 https://www.nytimes.com/2026/10/22/opinion/interesting-times-tyler-cowen-michael-kratsios.html 0362-4331 Charlotte Gartenberg Michael Kratsios: So I think for us, the funding priorities first and foremost are S.I. for science, and this was launched by executive order—Tyler Cowen: And S.I. being superintelligence.Kratsios: Correct. Superintelligence.Cowen: What we used to call artificial intelligence.
en Philippines accounting business en sales invoice.
en UK Canada Australia law en statutory instrument.
en 2016-12-15 Richard Kelly Statutory Instruments House of Commons Library Briefing Paper 6509 1 https://researchbriefings.files.parliament.uk/documents/SN06509/SN06509.pdf 9 February 2022 https://web.archive.org/web/20220107184505/https://researchbriefings.files.parliament.uk/documents/SN06509/SN06509.pdf 7 January 2022 The scope of SIs varies greatly, from the technical (e.g. to set or vary the dates on which different provisions of an Act will come into force, to change the levels of fines or penalties for offences or to make consequential and transitional provisions) to the much wider-ranging, such as filling out the broad provisions in Acts.
en subinspector (of police, etc).
en India's first transgender SI
en underwater diving en surface interval.
Alternative forms
en S.I. statutory instrument, chiefly in citation
Derived terms
en SIer
Adjective
-
en anatomy medicine en sacroiliac.
en SI joint
Anagrams
en is 'is I's IS Is i's is is- is.
en Metric system Fan fiction
French
Pronunciation
èss-i
fr LL-Q150 (fra)-0x010C-SI.wav
fr LL-Q150 (fra)-LoquaxFR-SI.wav <<France>> (<<Vosges>>)
fr LL-Q150 (fra)-Bananax47-SI.wav <<France>> (<<Agen>>)
Proper noun
m
fr Système international: mul SI
Alternative forms
fr S.I. S. I. Système International d'Unités
Indonesian
Pronunciation
id /ˈɛs.i/
Proper noun
id proper noun
id historical politics id w:id:Sarekat Islam
id physics id w:id:Sistem Internasional International System of Units
id w:id:Surveyor Indonesia
Noun
id sarjana informatika
id sistem informatika
Japanese
Etymology
ja en SI えすあい, from ja fr SI えすあい Système international d'unités.
Pronunciation
エスアイ 3
Noun
エスアイ
ja 国際単位系 Kokusai Tan'ikei en International System of Units; the en SI
ja Systems SI units えすあい
Polish
Pronunciation
es'i S.I
Noun
f yes
pl sztuczna inteligencja
Portuguese
Proper noun
m
pt Sistema Internacional: mul SI
Spanish
Proper noun
m
es @abbrev of:Sinaloa state c/Mexico