# tumor

> English word · Noun · IPA /tjuː.mə/ · frequency rank #7,514

## Definitions
1. An abnormal growth; differential diagnosis includes abscess, metaplasia, and neoplasia.

## Etymology
From Middle English tumour, from Old French tumour, from Latin tumor (“swelling”), from tumeō (“bulge, swell”, verb), from Proto-Italic *tumēō, from Proto-Indo-European *tewh₂- (“to swell”). Related to English thumb.

## Easily confused with
- **tur** (https://plainspell.com/en/vs/tumor-vs-tur)
- **tutor** (https://plainspell.com/en/vs/tumor-vs-tutor)
- **tuner** (https://plainspell.com/en/vs/tumor-vs-tuner)
- **tumour** (https://plainspell.com/en/vs/tumor-vs-tumour)
- **tor** (https://plainspell.com/en/vs/tor-vs-tumor)
- **tum** (https://plainspell.com/en/vs/tum-vs-tumor)
- **Thor** (https://plainspell.com/en/vs/thor-vs-tumor)
- **timer** (https://plainspell.com/en/vs/timer-vs-tumor)
- **tummy** (https://plainspell.com/en/vs/tummy-vs-tumor)
- **tenor** (https://plainspell.com/en/vs/tenor-vs-tumor)
- **Tudor** (https://plainspell.com/en/vs/tudor-vs-tumor)
- **Timor** (https://plainspell.com/en/vs/timor-vs-tumor)
- **Tamar** (https://plainspell.com/en/vs/tamar-vs-tumor)
- **tabor** (https://plainspell.com/en/vs/tabor-vs-tumor)
- **tamer** (https://plainspell.com/en/vs/tamer-vs-tumor)
- **Timon** (https://plainspell.com/en/vs/timon-vs-tumor)
- **tuber** (https://plainspell.com/en/vs/tuber-vs-tumor)
- **tumblr** (https://plainspell.com/en/vs/tumblr-vs-tumor)
- **tremor** (https://plainspell.com/en/vs/tremor-vs-tumor)

## Common misspellings (7)
`tmuor`, `ttumor`, `tummor`, `tumorr`, `tumro`, `tuomr`, `utmor`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/tumor