sei vs shin, What's the Difference?

Which to use

“sei” is a num and “shin” is a noun - they look or sound alike but fill different roles in a sentence.

#48,072
“sei” frequency rank: #16,220
“shin” frequency rank: 64292
confusion score

Side-by-Side Comparison

Feature	sei	shin
Definition	Seis.	Vigésima primera letra del alfabeto hebreo.

Where the spellings diverge

Shared letters are muted; the letters that actually set sei and shin apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

3 ch

sei

4 ch

shin

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: sei is /s̺ej/ while shin is [ˈʃĩn]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (num vs noun), which is usually the fastest check. Our composite confusion score for this pair is 64292, derived from the frequency rank of both members and their visual similarity.

sei is recorded at frequency rank #48,072, classified as anum, pronounced /s̺ej/. shin is at rank #16,220, tagged as anoun, pronounced [ˈʃĩn].

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 64292, this pair ranks #46,034 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of sei vs shin

Shared letters: is. Private to "sei": e. Private to "shin": hn.

"sei" · 3 letters · shape CVV · "shin" · 4 letters · shape CCVC

Known mistypes of this pair

shin ← hsin · shhin · shinn · shni · sihn · sshin

Frequency comparison

sei#48,072

shin#16,220

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "sei" and "shin" be used interchangeably?

No - they are not even the same part of speech. "sei" is a num and "shin" a noun, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "sei" or "shin"?

"shin" is the more common of the two: it sits at frequency rank #16,220 in our Spanish list, against #48,072 for "sei". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering sei vs shin

The fastest way to pick the right one every time.

Check the role first: if you need a num, it's “sei”; for a noun, it's “shin”.
See each word in full, definition, IPA, etymology and its other confusables. Full “sei” entry
Browse more pairs most likely to be confused. Most confusable