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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. See SI unit
    Système International (d'Unités) See SI unit

abbreviation for

  1. South Island

Si

2

the chemical symbol for

  1. silicon

si

3

the internet domain name for

  1. Slovenia

Si

4

/ ʃiː /

noun

  1. See Xi
    a variant transliteration of the Chinese name for the Xi

si

5

/ siː /

noun

  1. See te
    music a variant of te

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Word History and Origins

Origin of si1

First recorded in 1720–30; gamut

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Example Sentences

There are the Sulzbergers, the Murdochs, Mort Zuckerman, Mike Bloomberg, S.I. Newhouse, a few others.

And then Hiram Fong and [S.I] Hayakawa, representing Hawaii and California.

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