Koi Terminology for the Water Pond Enthusiast

Every time you learn a language that is not your own, it can become quite difficult to remember. This article will help you break down the Japanese language to make it easier to retain. A large part of the Koi names are colors. I have divided the terminology into categories. They are colors, Koi age, body parts, sizes, and other Japanese words. I did not include the terminology used when judging as it is quite extensive. I want you to learn something from this without feeling overwhelmed. We will start the list of categories with the colors ordered by word in English.


English = Japanese

Orange = Orenji

Red = Hello (marks) or Aka (body)

Dark red = Beni

Blue = Ai

Light blue = Akebi or Mizu

Medium blue = Narumi

Dark blue = Konjo

White = Shiro

Yellow = Ki

Yellow / Green = Hisoku

Green = Midori or Koshi

Gold (metallic) = Kin

Silver (metallic) = Geneva

Platinum = Purachina

Gray = Sora

Brown = Cha

Black = Karasu (body), Sumi or Kuro (marks)

Barely visible black = Sokozumi


Japanese = English

Tosai = Koi up to 1 year

Nesai = Koi from 1 to 2 years

Sansai = Koi 2-3 years

Yonsai = Four-year-old Koi

Gosai = Five-year-old Koi

Yogyo = Young fish


Doh = Body

Hachi = Head

Kao = Area between the cheeks on the face

Hara = abdominal area

Koke = Scale

Kuchi = Lips

Men = Face

Tebire = Pectoral thin

Namitate = Dorsal end

Ozuke = Base of the tail

Ozutsu = area of ​​the body behind the dorsal fin

Penducle = Area just before the tail


Bu = Size division

Ichi bu = Size one

Ni Bu = Size two

San bu = Size three

Yon bu = Size four

Go bu = Size five

Roku bu = size six

Shiki bu = Size seven


Aka Hana = Red Nose

Friend = Net

Arashi Kumo = Storm Clouds

Ato = late onset

Beer = Fire

Dagoi = Poor quality fish

Yotsa = Oven

Goi = Carp or fish

Goke = Fish scale

Hiagari = Intensity of the color red

Hinomaru = Rising Sun

Iromono = Name used for all metallic koi

Jari = Gravel

Jihada = Koi skin texture

Kana = Male Koi

Kindai = Modern

Koi-dangi = The word means we Koi enthusiasts!

Kokenami = Line of scales

Koromo = Tunic

Kujaku = peacock

Leather Koi = Koi with no visible scales

Momo = One

Moyo = More than one color

Muji = Single solid color

Ochibashigure = Autumn leaves in the water

Oiya = Father

Oiyagoi = Koi father

Oyugu Hoseki = Living Jewels

Pongoi = good quality fish

Sanshoku = Three colors

Sarasa = bright feelings

Taki = waterfall

Teri = Brightness

Tetsu = Iron

Tsuya = Shine

Utsuri = Reflections

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