sac vs sai, What's the Difference?

Which to use

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

#23,816
“sac” frequency rank: #998
“sai” frequency rank: 24814
confusion score

Side-by-Side Comparison

Feature	sac	sai
Definition	saco, bolsa	expressão que comunica que se deseja que se afaste, que deixe em paz

Letter map: sac vs sai

Shared letters muted; letters that set sac and sai apart highlighted. Shared run: 2.

3 ch

sac

3 ch

sai

Grammar separator: sac vs sai

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sac is anoun and saianintj. On the page they differ by a single letter - c in “sac” becomes i in “sai”. Our composite confusion score for this pair is 24814, derived from the frequency rank of both members and their visual similarity.

sac is recorded at frequency rank #23,816, classified as anoun, pronounced \sak\. sai is at rank #998, 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 24814, this pair ranks #44,678 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sac vs sai

Shared letters: as. Private to "sac": c. Private to "sai": i.

"sac" · 3 letters · shape CVC · "sai" · 3 letters · shape CVV

Frequently Asked Questions

Is swapping "sac" for "sai" ever safe?

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

Which is more common, "sac" or "sai"?

"sai" is the more common of the two: it sits at frequency rank #998 in our Portuguese list, against #23,816 for "sac". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pair "sac" vs "sai" is on the table, pick a follow-up below.

Full dictionary entry for "sac" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "sai" - compare definitions side by side with the headword page. Word entry
This pair ranks #44,678 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"sac" and "sai" also get mixed up with nearby pairs, the highest-scored neighbour is "sac vs soap". Nearby pair

Confusion rank #44,678 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.