si

noun
\ ˈsē How to pronounce si (audio) \

Definition of si

 (Entry 1 of 3)

Si

symbol

Definition of Si (Entry 2 of 3)

silicon

Definition of SI (Entry 3 of 3)

International System of Units

First Known Use of si

Noun

1728, in the meaning defined above

History and Etymology for si

Noun

Italian

Abbreviation

French Système International d'Unités

Learn More About si

Dictionary Entries Near si

shyster

si

Si

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Statistics for si

Cite this Entry

“Si.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/si. Accessed 20 May. 2022.

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More Definitions for si

Si

symbol

Medical Definition of Si

 (Entry 1 of 2)

silicon

SI

abbreviation

Medical Definition of SI (Entry 2 of 2)

International System of Units

History and Etymology for si

Abbreviation

French Système International d'Unités

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