SindhvssinusTell them apart

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

Which to use

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

#29,839
“Sindh” frequency rank
#20,225
“sinus” frequency rank
50064
confusion score

Side-by-Side Comparison

Feature Sindh sinus
Definition A populated province in southeastern Pakistan, notably the region in which the ancient Indus Valley Civilisation flourished. Capital: Karachi. A pouch or cavity in a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities (the paranasal sinus).

Where the eye mixes Sindh and sinus

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
Sindh
5 ch
sinus

Visual trap between Sindh and sinus

These two trip readers on the page rather than in the ear: Sindh is /sɪnd̪ʱ/ while sinus is /ˈsaɪ.nəs/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 50064, derived from the frequency rank of both members and their visual similarity.

Sindh is recorded at frequency rank #29,839, classified as aname, pronounced /sɪnd̪ʱ/. sinus is at rank #20,225, tagged as anoun, pronounced /ˈsaɪ.nəs/.

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 50064, this pair ranks #177,688 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Sindh vs sinus

Shared letters: ins. Private to "Sindh": dh. Private to "sinus": u.

"Sindh" · 5 letters · shape CVCCC  ·  "sinus" · 5 letters · shape CVCVC

Known mistypes of this pair

  • Sindhisndh · sidnh · sinddh · sindhh · sinhd · sinndh · snidh · ssindh
  • sinusisnus · sinnus · sinsu · sinuss · siuns · snius · ssinus

Frequently Asked Questions

Is swapping "Sindh" for "sinus" ever safe?
No - they are not even the same part of speech. "Sindh" is a name and "sinus" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Sindh" vs "sinus" - which ranks higher?
"sinus" is the more common of the two: it sits at frequency rank #20,225 in our English list, against #29,839 for "Sindh". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "Sindh" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sinus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #177,688 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Sindh" and "sinus" also get mixed up with nearby pairs, the highest-scored neighbour is "SIDS vs Sindh". 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 #177,688 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