A fisherman was injured after being attacked by a shark.
A large shark was being sold at the market.
We caught a big shark out at sea.
Katakana spelling is common, especially in Kansai dialect contexts.
Hiragana spelling is also used.
Kanji form is rare and not commonly used; the word is usually written in kana.
The origin is uncertain; it is a dialectal term for shark in the Kansai region.