TimorvstumourTell them apart

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

Which to use

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

#20,515
“Timor” frequency rank
#17,510
“tumour” frequency rank
38025
confusion score

Side-by-Side Comparison

Feature Timor tumour
Definition An island in the Sundas. Commonwealth standard spelling of tumor.

Letter map: Timor vs tumour

Shared letters muted; letters that set Timor and tumour apart highlighted. Shared run: 4. Timor runs 5 letters (CVCVC) against tumour's 6 (CVCVVC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
Timor
6 ch
tumour

Part-of-speech tell for Timor / tumour

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Timor is aname and tumouranoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 38025, derived from the frequency rank of both members and their visual similarity.

Timor is recorded at frequency rank #20,515, classified as aname, pronounced /tiːmɔː/. tumour is at rank #17,510, tagged as anoun.

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 38025, this pair ranks #289,475 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Timor vs tumour

Shared letters: mort. Private to "Timor": i. Private to "tumour": u.

"Timor" · 5 letters · shape CVCVC  ·  "tumour" · 6 letters · shape CVCVVC

Known mistypes of this pair

  • Timor ← itmor · timmor · timorr · timro · tiomr · tmior · ttimor
  • tumour ← tmuour · ttumour · tummour · tumoru · tumourr · tumuor · tuomur · utmour

Frequently Asked Questions

Is swapping "Timor" for "tumour" ever safe?
No - they are not even the same part of speech. "Timor" is a name and "tumour" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Timor" or "tumour"?
"tumour" is the more common of the two: it sits at frequency rank #17,510 in our English list, against #20,515 for "Timor". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "Timor" vs "tumour" is on the table, pick a follow-up below.

  • Full dictionary entry for "Timor" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tumour" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #289,475 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Timor" and "tumour" also get mixed up with nearby pairs, the highest-scored neighbour is "Tiber vs Timor". 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 #289,475 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