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si

1

[ see ]

noun

, Music.
  1. the syllable used for the seventh tone of a scale and sometimes for the tone B.


Si

2
Symbol, Chemistry.
  1. silicon.

SI

3

S.I.

4

abbreviation for

  1. Sandwich Islands.
  2. Staten Island.

SI

1

symbol for

  1. Système International (d'Unités) See SI unit
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


abbreviation for

  1. South Island
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

si

2

the internet domain name for

  1. Slovenia
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

si

3

/ siː /

noun

  1. music a variant of te
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Si

4

/ ʃiː /

noun

  1. a variant transliteration of the Chinese name for the Xi
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Si

5

the chemical symbol for

  1. silicon
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of si1

First recorded in 1720–30; gamut
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Example Sentences

Last question: Who do you think is the sexiest SI swimsuit model of all time?

Except for nine of them are musical words: do, re, mi, fa, so, la, ti—and si—are musical.

Michael Sam has one big advantage over the aging NFL execs who whined to SI.

It was the only SI story Shrake ever wrote that the magazine would not print and Laguerre was embarrassed.

Raymond Depardon: Un Moment Si Doux is on display at Grand Palais, Paris until February 10, 2014.

Ils me respondirent que si je la voulois, ils me la donnoyent tout faict.

Il prenoit des symptomes si mortels, que souvent nous n'attendions sinon qu'il nous demeurast entre les mains.

De moi, je ne say qu'en dire, d'autant que je ne veux affirmer ny le si ny le non en ce dont je n'ay vidence.

La rougeur estoit si esclatante, que toute la rivire s'en teingnoit et en reluysoit.

Or ne say-je quelle estoit sa maladie; si elle venoit seulement par intervalles, ou non, je n'en say rien: tant y a que le 2.

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