sasvsseiWhat's the difference?

Quick tell: sas is a noun, sei is a num, so they fill different roles in a sentence.

Which to use

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

#20,511
“sas” frequency rank
#48,072
“sei” frequency rank
68583
confusion score

Side-by-Side Comparison

Feature sas sei
Definition Cedazo Seis.

Where the spellings diverge

Shared letters are muted; the letters that actually set sas and sei apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch
sas
3 ch
sei

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: sas is /ˈsas/ while sei is /s̺ej/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs num), which is usually the fastest check. Our composite confusion score for this pair is 68583, derived from the frequency rank of both members and their visual similarity.

sas is recorded at frequency rank #20,511, classified as anoun, pronounced /ˈsas/. sei is at rank #48,072, tagged as anum, pronounced /s̺ej/.

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 68583, this pair ranks #34,126 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of sas vs sei

Shared letters: s. Private to "sas": a. Private to "sei": ei.

"sas" · 3 letters · shape CVC  ·  "sei" · 3 letters · shape CVV

Frequency comparison

sas#20,511
sei#48,072

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "sas" and "sei" be used interchangeably?
No - they are not even the same part of speech. "sas" is a noun and "sei" a num, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sas" or "sei"?
"sas" is the more common of the two: it sits at frequency rank #20,511 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 sas vs sei

The fastest way to pick the right one every time.

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

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list