sap vs sei, What's the Difference?

Which to use

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

#32,768
“sap” frequency rank: #118
“sei” frequency rank: 32886
confusion score

Side-by-Side Comparison

Feature	sap	sei
Definition	seiva	expressa que aquilo ouvido que foi dito ou afirmado por alguém não é tomado como sendo a verdade

Letter map: sap vs sei

Shared letters muted; letters that set sap and sei apart highlighted. Shared run: 1.

3 ch

sap

3 ch

sei

Part-of-speech tell for sap / sei

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sap is anoun and seianintj. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 32886, derived from the frequency rank of both members and their visual similarity.

sap is recorded at frequency rank #32,768, classified as anoun, pronounced /sæp/. sei is at rank #118, tagged as anintj.

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 32886, this pair ranks #34,782 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sap vs sei

Shared letters: s. Private to "sap": ap. Private to "sei": ei.

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

Frequently Asked Questions

Do "sap" and "sei" mean the same thing in a sentence?

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

In ordinary Portuguese text, does "sap" or "sei" show up more?

"sei" is the more common of the two: it sits at frequency rank #118 in our Portuguese list, against #32,768 for "sap". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

You've compared "sap" and "sei". Here's where to go from here.

Full dictionary entry for "sap" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "sei" - compare definitions side by side with the headword page. Word entry
This pair ranks #34,782 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"sap" and "sei" also get mixed up with nearby pairs, the highest-scored neighbour is "sap vs soap". Nearby pair

Confusion rank #34,782 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.