psi
[ˈsi]
The verdict
“psi” is a moderately-common Spanish word, ranked #36,774 in Spanish word frequency and used as a noun.
- #36,774
- frequency rank, Spanish
- 3
- letters
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Letra del alfabeto griego (Ψψ).
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 | psi |
| Language | Spanish |
| Part of speech | Noun |
| IPA | [ˈsi] |
| Letters | 3 |
| Frequency rank | #36,774 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “psi” sits in Spanish frequency
Spelling & Dictionary Insight
The Spanish entry for psi is 3 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as [ˈsi]. Corpus data places it at rank #36,774 in overall Spanish word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Letra del alfabeto griego (Ψψ).".
We couldn't generate a plausible misspelling set for psi, typically a sign the spelling maps closely to how the word sounds. It also participates in 20 confusable-pair relationships, "PT", "pu", "py", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
This entry carries no recorded etymology, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct Spanish form is psi, spelled P-S-I.
Definition
- 1Letra del alfabeto griego (Ψψ).
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 “psi”
The practical upshot for anyone who landed here from a spell-check.
- The one correct Spanish spelling is P-S-I - 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 “PT” - see the side-by-side comparison. psi vs PT
- 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.