SumatravssutraConfusable pair

Quick tell: Sumatra is a name, sutra is a noun, so they fill different roles in a sentence.

Which to use

“Sumatra” is a name and “sutra” is a noun - they look or sound alike but fill different roles in a sentence.

#28,042
“Sumatra” frequency rank
#32,613
“sutra” frequency rank
60655
confusion score

Side-by-Side Comparison

Feature Sumatra sutra
Definition The largest island entirely in Indonesia and the world’s sixth largest island. A rule or thesis in Sanskrit grammar or Hindu law or philosophy.

Where the eye mixes Sumatra and sutra

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

7 ch
Sumatra
5 ch
sutra

Look-alike desk: Sumatra vs sutra

These two trip readers on the page rather than in the ear: Sumatra is /suːˈmɑːtɹə/ while sutra is /ˈsuːtɹə/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 60655, derived from the frequency rank of both members and their visual similarity.

Sumatra is recorded at frequency rank #28,042, classified as aname, pronounced /suːˈmɑːtɹə/. sutra is at rank #32,613, tagged as anoun, pronounced /ˈsuːtɹə/.

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 60655, this pair ranks #98,919 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Sumatra vs sutra

Shared letters: arstu. Private to "Sumatra": m. Private to "sutra": -.

"Sumatra" · 7 letters · shape CVCVCCV  ·  "sutra" · 5 letters · shape CVCCV

Known mistypes of this pair

  • Sumatrasmuatra · ssumatra · suamtra · sumarta · sumatar · sumatrra · sumattra · summatra
  • sutrassutra · stura · surta · sutar · sutrra · suttra · ustra

Frequently Asked Questions

Is swapping "Sumatra" for "sutra" ever safe?
No - they are not even the same part of speech. "Sumatra" is a name and "sutra" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Sumatra" vs "sutra" - which ranks higher?
"Sumatra" is the more common of the two: it sits at frequency rank #28,042 in our English list, against #32,613 for "sutra". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "Sumatra" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sutra" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #98,919 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Sumatra" and "sutra" also get mixed up with nearby pairs, the highest-scored neighbour is "sura vs sutra". 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 #98,919 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list