sí
[ˈsi]
The verdict
“sí” is in the everyday core of Spanish, ranked #146 in Spanish word frequency and used as an adverb.
- #146
- frequency rank, Spanish
- 2
- letters
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Palabra usada para expresar afirmación.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | sí |
| Language | Spanish |
| Part of speech | Adverb |
| IPA | [ˈsi] |
| Letters | 2 |
| Frequency rank | #146 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “sí” sits in Spanish frequency
Spelling & Dictionary Insight
The Spanish entry for sí is 2 letters long, classified as an adverb, and transcribed in the International Phonetic Alphabet as [ˈsi]. Corpus data places it at rank #146 in overall Spanish word frequency, putting it firmly in the everyday core of the language. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
Zero misspellings are on record for sí in our index, a straightforward case of a spelling with little room for common typos. It also participates in 20 confusable-pair relationships, "su", "so", "st", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
No documented word history exists for this headword, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct Spanish form is sí, spelled S-Í.
Definition
- 1Palabra usada para expresar afirmación.
- 2De modo enfático, se usa para revertir una proposición considerada negativa.
Antonyms
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 Spanish corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “sí”
The practical upshot for anyone who landed here from a spell-check.
- The one correct Spanish spelling is S-Í - every other letter order is a misspelling in standard orthography.
- Say it as [ˈsi] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “su” - see the side-by-side comparison. sí vs su
- Browse more Spanish words and confusable pairs in the same reference. Spanish words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.