pei vs pues, What's the Difference?

Which to use

“pei” is a noun and “pues” is a conjunction - they look or sound alike but fill different roles in a sentence.

#45,496
“pei” frequency rank: #170
“pues” frequency rank: 45666
confusion score

Side-by-Side Comparison

Feature	pei	pues
Definition	Decimoséptima letra del alfabeto hebreo	Partícula que sirve en la oración de nota de quien se resuelve alguna cosa o se afirma sobre lo que discurre o va a discurrir. Regularmente se pospone en este sentido a la primera palabra de la oración..

Where the spellings diverge

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

3 ch

pei

4 ch

pues

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: pei is [ˈpej] while pues is [ˈpwes]. 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 (noun vs conjunction), which is usually the fastest check. Our composite confusion score for this pair is 45666, derived from the frequency rank of both members and their visual similarity.

pei is recorded at frequency rank #45,496, classified as anoun, pronounced [ˈpej]. pues is at rank #170, tagged as aconj, pronounced [ˈpwes].

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 45666, this pair ranks #130,126 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of pei vs pues

Shared letters: ep. Private to "pei": i. Private to "pues": su.

"pei" · 3 letters · shape CVV · "pues" · 4 letters · shape CVVC

Known mistypes of this pair

pues ← peus · ppues · puess · upes

Frequency comparison

pei#45,496

pues#170

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "pei" and "pues" be used interchangeably?

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

Which is more common, "pei" or "pues"?

"pues" is the more common of the two: it sits at frequency rank #170 in our Spanish list, against #45,496 for "pei". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering pei vs pues

The fastest way to pick the right one every time.

Check the role first: if you need a noun, it's “pei”; for a conjunction, it's “pues”.
See each word in full, definition, IPA, etymology and its other confusables. Full “pei” entry
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