tick; mite
General term for ticks and mites; commonly used in everyday contexts such as pest warnings and pet care.
I was bitten by a tick in the mountains.
Colloquial, somewhat dated slang for a ruffian or street tough; not commonly used in modern conversation.
After hiking in the mountains, I got bitten on the leg by a tick.
ペットにダニがついていないかチェックしてください。
Please check your pet for ticks.
That area is full of hoodlum types hanging around.
I sun-dried the futon to get rid of the dust mites.
Mites tend to breed in humid rooms.
ダニ is dated slang for a hoodlum, whereas ごろつき is the more common, current word for the same idea.
counter for small animals · counter for rolls of cloth · archaic counter for horses · roll of cloth
Standard katakana spelling for the tick/mite sense; the word is usually written in kana.
Hiragana spelling, also common.
Rare kanji form for tick/mite; not normally used in modern writing.
Rare kanji form for tick/mite.
Rare kanji form for tick/mite.
The origin is uncertain. The tick/mite sense is native Japanese, while the slang sense likely derives from the idea of a blood-sucking pest.