There are 3 definitions of SI in English:

SI

Line breaks: SI
Pronunciation: /ɛsˈʌɪ
 
/

abbreviation

  • 1The international system of units of measurement.
    [from French Système International]
  • 1.1 Law Statutory instrument.

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Word of the day tortie
Pronunciation: ˈtɔːtiː
noun
a tortoiseshell cat

There are 3 definitions of SI in English:

si

Line breaks: si
Pronunciation: /siː
 
/

noun

Music
  • another term for te.

Origin

early 18th century: from the initial letters of Sancte Iohannes, the closing words of a Latin hymn (see solmization).

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