a Japanese fluvial sculpin (species Cottus pollux); very similar to the kamakiri (see above), but smaller

a Japanese fluvial sculpin (species Cottus pollux), more commonly known as 鰍 (kajika)

a saffron cod (Eleginus gracilis)

Alternative spelling of かじき座 (“Dorado”)

an apophyllite

(idiomatic) the fish rots from the head

something or someone small or insignificant among great things or people; a fool among sages

ability to track moving things

(mathematics) geometrical

"Historical kana usage", a prescriptive method of using kana to write Japanese. Devised in the Edo period by Keichū (契沖) and taught in schools until 1946, it aims to be etymologically faithful and reflects earlier stages of the language (Heian period and earlier).