Si

See also: Appendix:Variations of "si"

Translingual

Symbol

Si

1. (chemistry) silicon.

English

Etymology 1

From clipping of various words beginning with the syllable /saɪ/.

Pronunciation

• IPA^(key): /saɪ/
• Rhymes: -aɪ

• Audio (US)

  (file)

• Homophones: sigh, sie, sai, psi, xi, scye, Sy, Cy, Si

Proper noun

Si

1. A diminutive of the male given name Simon.
2. A diminutive of the male given name Silas.

Alternative forms

• Sy

Etymology 2

From Hanyu Pinyin Sì, from the Mandarin pronunciation of Chinese 泗 (sì) and 肆 (sì).

Pronunciation

• IPA^(key): /sɪ/, /sə/

Proper noun

Si

1. A river in Shandong, China.
2. A county in Anhui, China.
3. (historical) Various prefectures of imperial China.

Alternative forms

• Su, Ssu

Synonyms

• (county): Sixian, Ssu-hsien
• (prefectures): Sizhou, Ssu-chou

Etymology 3

Pronunciation

• enPR: sē

Proper noun

Si

1. Alternative form of Xi

References

• “Si”, in Merriam-Webster Online Dictionary

Anagrams

• 'is, I's, IS, Is, i's, is, is-, is.

Alemannic German

Etymology

See si (“they”). Cognate with German Sie.

Pronoun

Si

1. (polite) you (singular and plural)

Declension

Alemannic German personal pronouns

		nominative	accusative	dative	possessive m
1st person singular		ich, i	mich, mi	mir, mier, mer	min, miin
2nd person singular	familiar	du	dich, di	dir, dier, der	din, diin
	polite	Si		Ine, Ene, -ne	Ire
3rd person singular	m	er	in, en	im	sin, siin
	f	si		ire
	n	es, 's, -s		im	sin, siin
1st person plural		mir, mer	üs, öis, ois, eus		üse, öise, oise, euse
2nd person plural		ir, ier	öi, eu		öie, eure
3rd person plural		si		ine, ene, -ne	ire

Limburgish

Pronunciation

• IPA^(key): /ziː/
• Homophone: si
• Rhymes: -iː

Etymology 1

From Proto-West Germanic *sīdā, from Proto-Germanic *sīdǭ.

Noun

Si f (plural Sijje) (Eupen)

1. (geometry, and in general) side (a bounding straight edge of a two-dimensional shape)

   Synonym: Kaïnt

2. (geometry) face, side, surface of any three-dimensional object
3. page (single leaf of any manuscript or book)
4. side (one of the two surfaces of a sheet of paper)
5. one side or half of something or someone
6. (figuratively) a certain aspect of a concept
7. (figuratively) side, faction or group of competitors in a war, game, conflict or any other competitive situation in opposite to their opponents
8. face of a coin or dice

Etymology 2

From Old Limburgish sīda, from Medieval Latin sīda, sēta, from Latin saeta (“horsehair; bristle; silk”).

Noun

Si f (plural Sijje) (Eupen)

1. silk
2. Any of several parasitic vines, of the genus Cuscuta, having small white flowers but no leaves.