matvsmathWhat's the difference?

Quick tell: mat is a noun, math is an adjective, so they fill different roles in a sentence.

Which to use

“mat” is a noun and “math” is an adjective - they look or sound alike but fill different roles in a sentence.

#21,805
“mat” frequency rank
#31,869
“math” frequency rank
53674
confusion score

Side-by-Side Comparison

Feature mat math
Definition casamento bom

Letter map: mat vs math

Shared letters muted; letters that set mat and math apart highlighted. Shared run: 3. mat runs 3 letters (CVC) against math's 4 (CVCC) - the length gap alone is often enough to separate them once you know to check it.

3 ch
mat
4 ch
math

Grammar separator: mat vs math

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: mat is anoun and mathanadjective. On the page they differ by 1 extra letter(s) - “mat” sits inside “math”. Our composite confusion score for this pair is 53674, derived from the frequency rank of both members and their visual similarity.

mat is recorded at frequency rank #21,805, classified as anoun, pronounced /mat/. math is at rank #31,869, tagged as anadj.

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 53674, this pair ranks #11,864 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of mat vs math

Shared letters: amt. Private to "mat": -. Private to "math": h.

"mat" · 3 letters · shape CVC  ·  "math" · 4 letters · shape CVCC

Known mistypes of this pair

  • math ← amth · maht · mathh · matth · mmath · mtah

Frequently Asked Questions

Do "mat" and "math" mean the same thing in a sentence?
No - they are not even the same part of speech. "mat" is a noun and "math" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "mat" or "math" show up more?
"mat" is the more common of the two: it sits at frequency rank #21,805 in our Portuguese list, against #31,869 for "math". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "mat" and "math".

  • Full dictionary entry for "mat" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "math" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #11,864 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "mat" and "math" also get mixed up with nearby pairs, the highest-scored neighbour is "maa vs math". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #11,864 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list