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Meaning of “SI” in the English Dictionary

"SI" in British English

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SInoun [U]

uk   /esˈaɪ/  us   /esˈaɪ/ specialized
(Definition of SI from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"SI" in American English

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SInoun [U]

 /ˈesˈɑɪ/
science abbreviation forInternational System of Units (= an ​internationalsystem of ​units used for ​measurement in ​scientificwork)
(Definition of SI from the Cambridge Academic Content Dictionary © Cambridge University Press)

"SI" in Business English

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SInoun

uk   us   /ˌesˈaɪ/ MEASURES
abbreviation for Système International: a ​system of ​units of ​measurement used ​internationally. SI ​unitsinclude the ​metre, ​kilogram, second, ampere (= ​unit of electric ​current), candela (= ​unit of ​light), kelvin (= ​unit of temperature), and the mole (= ​unit of the ​amount of a substance): The ​chartshows you how to ​convert from a ​conventionalunit to an SI ​unit.
UK LAW →  statutory instrument
(Definition of SI from the Cambridge Business English Dictionary © Cambridge University Press)
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“SI” in Business English

There, their and they’re – which one should you use?
There, their and they’re – which one should you use?
by ,
April 27, 2016
by Liz Walter If you are a learner of English and you are confused about the words there, their and they’re, let me reassure you: many, many people with English as their first language share your problem! You only have to take a look at the ‘comments’ sections on the website of, for example, a popular

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