(こぶ)

こぶ
noun
lump; bump; swelling; hump
health
1. lump; bump; swelling; hump
A rounded protrusion — a bump raised on the head by a knock, a knot on a tree trunk, or the hump on a camel's back. Usually written in kana.
I got a bump on my head.
The spot I hit swelled up into a lump.

Normally written こぶ in kana; the kanji (こぶ) appears mainly in medical or literary writing.

Common expressions

  • こぶできる: for a bump to form
  • たんこぶ: a bump on the head — the colloquial, slightly childish variant
  • ()(うえ)たんこぶ: a thorn in one's side (literally, a lump above the eye) — someone in a senior position who is always in your way

Similar words

  • ()れ: swelling — a spread-out puffiness rather than a distinct lump
  • できもの: a growth, boil — something that appears on the skin, often needing treatment