AskDefine | Define si

Dictionary Definition

SI

Noun

1 a complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela); "Today the United States is the only country in the world not totally committed to the Systeme International d'Unites" [syn: Systeme International d'Unites, Systeme International, SI system, International System of Units, International System]
2 a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors [syn: silicon, atomic number 14]
3 the syllable naming the seventh (subtonic) note of any musical scale in solmization [syn: ti, te]

User Contributed Dictionary

English

Alternative spellings

Pronunciation

  • /si/

Noun

  1. A syllable used in solfège to represent the seventh note of a major scale.

Catalan

Etymology 1

From si.

Conjunction

  1. if

Etymology 2

uncertain.

Noun

  1. cavity, depression
  2. sinus
  3. uterus
  4. front portion of the breast
  5. heart
  6. estuary, bay
  7. si

See also

Usage notes

Si is the stressed (or "strong", or "tonic") form of the reflexive pronoun es: as such, it is used after prepositions.

Czech

Pronoun

, dative

Synonyms

Related terms

Danish

Noun

  1. sieve

Dutch

Noun

  1. musical note; ti

Esperanto

Ewe

Verb

  1. To escape.

French

Etymology 1

si.

Pronunciation

rfc-level check placement of Pronunciation
  • /si/, /si/

Conjunction

  1. if

Etymology 2

sic.

Interjection

  1. yes (used to contradict a negative statement) (often followed by I do, he is, etc., in English to indicate contradiction rather than affirmation).
    Tu ne m’aimes pas, n’est-ce pas ? — Si ! — You don’t like me, do you? — Yes, I do!

Interlingua

Adverb

  1. yes

Italian

Etymology

se.

Pronoun

  1. In the context of "indefinite": one, you, we, they, people
    Note: In this sense, si is often translated using the passive in English.
    Examples:
    • Non si deve parlare così (One/You/We/They/People shouldn’t speak like that)
    • Si parla italiano qui (Italian is spoken here or One/You/We/They/People speak(s) Italian here)
  2. oneself, himself, herself, itself, themselves; (reciprocal) each other, one another.
    Examples:
    • Giovanni si è fatto male (Giovanni has hurt himself)
    • Carlo e Laura si amano (Carlo and Laura love each other)
    Note: With some verbs, si is not translated in English.
    Examples:
    • Marco si è rotto il braccio (Marco has broken his arm)
    • Si è svegliata alle nove (She woke up at nine)
  3. (the so-called si passivante, used to form the passive voice of a verb) it (but also see note below)
    Example: Si dice che Maria voleva uccidere Giovanni (It is said that Maria wanted to kill Giovanni).
    Note: In this sense, verb + si is often translated as become or get + past participle in English.
    Examples:
    • Ci vuole un po’ di tempo per abituarsi (It takes a while to become accustomed)
    • A Luca piace ubriacarsi (Luca likes to get drunk)

Usage notes

  • When si is part of an infinitive, it can be placed before it as a separate word, but more often it is attached to the end. In this case, the final -e of the infinitive is dropped, or, in the case of infinitives ending in -rre, the final -re is dropped. Examples: amare + si = amarsi; ridurre + si = ridursi.

See also

Latin

Conjunction

  1. if, supposing that

Derived terms

Usage notes

  • The conjunction si is followed by a clause with an indicative verb.

Lojban

Cmavo

si
  1. (metalinguistic eraser) deletes the last word

Related terms

Mandarin

Pinyin

si
  1. A transliteration of any of a number of Chinese characters properly represented as having one of three tones, , , or .

Usage notes

English transcriptions of Chinese speech often fail to distinguish between the critical tonal differences employed in the Chinese language, using words such as this one without the appropriate indication of tone.

Norwegian

Etymology 1

Noun

si
  1. seventh note of a major scale

Etymology 2

From segja

Verb

si (present tense sier; past tense sa; past participle sagt; present participle siende; imperative si)

Etymology 3

Synonymous with side (side)

Noun

si
Usage notes
This term is only used idiomatically in the phrase på si.

Portuguese

Etymology

se.

Slovak

Verb

byť (second-person singular: si)
  1. (you) are, (thou) art

Pronoun

  1. Replaces the dative of a personal pronoun when the subject is of the same person as the dative object. Roughly comparable with to oneself or for oneself.
    Kupujem si topánky. — I am buying myself shoes.
    Komu kupuješ topánky? Sebe. — Whom are you buying the shoes for? Myself.

Spanish

Etymology

si.

Conjunction

  1. if

See also

Swahili

Adverb

  1. not

Interjection

  1. yes

Extensive Definition

Si, si, or SI may refer to (all SI unless otherwise stated):
In language:
In computer science:
In education:
In gaming:
In mathematics and science: In medicine:
In music:
  • Si, the original name of the seventh note of solfege, later changed to "Ti"
  • Sì (song), the name of the Italian entry to the Eurovision Song Contest 1974
  • Sí (Julieta Venegas), an album by Mexican singer and songwriter Julieta Venegas
In mythology:
  • Si, the lunar deity in Mahican mythology
  • Si, another name for the Sídhe, Celtic mythological beings
In government and politics:
In sports:
In transportation:
Other:

See also

si in Arabic: SI
si in Bosnian: SI (čvor)
si in Catalan: Si
si in Czech: SI
si in Danish: Si
si in German: SI
si in Spanish: Si
si in Esperanto: Si
si in Basque: Si
si in French: SI
si in Korean: Si
si in Indonesian: SI
si in Icelandic: Si
si in Italian: SI (disambigua)
si in Hebrew: SI (פירושונים)
si in Latvian: Si
si in Lithuanian: Si
si in Dutch: Si
si in Japanese: SI
si in Polish: Si
si in Portuguese: SI
si in Kölsch: SI (Watt ėßß datt?)
si in Slovak: Si
si in Slovenian: Si
si in Finnish: Si
si in Vietnamese: SI (định hướng)
si in Chinese: Si
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