Japanese Onomatopoeia for Animals: Wanwan, Nyā, Chunchun, Mōmō

In Japanese, a dog says wanwan, a cat says nyā, sparrows say chunchun and a cow says mōmō. These animal sounds are giongo, sound-copying words, and they are used with the verb naku, to cry or call, as in inu ga wanwan naku. Small children also use some of them as names for the animals themselves.

What you need to know

Animal sounds are one of the first places learners notice that onomatopoeia differ between languages. A Japanese rooster does not say cock-a-doodle-doo but kokekokkō, and a pig says būbū instead of oink. These words matter beyond picture books: you hear them when parents talk to small children, in anime and commercials, and in everyday comments about a neighbour's barking dog or the cicadas that fill a Japanese summer. This guide lists the common farm, pet and wild animal sounds, explains the verbs that go with them, and shows how sound words turn into baby-talk names such as wanwan for a doggy. It also covers the seasonal animal sounds that many Japanese people associate with spring and summer, how to write the words in hiragana or katakana, and a short dialogue at a petting zoo. Register is simple here: the sounds themselves are neutral, but the baby-talk names are for children and very casual talk.

Animal sounds are giongo and usually go with naku: neko ga nyā to naku

Hoeru means to bark or roar; saezuru is for birds singing

Wanwan and nyannyan double as baby-talk names for dog and cat

Cicadas, frogs and the bush warbler are classic seasonal sounds

Four animal sounds every learner hears

These are the four animal sounds you will hear most in Japan: the neighbourhood dog, a cat, the sparrows outside in the morning and the cows in picture books and farm parks. All four are giongo, and all four go with the verb naku.

Four picture cards: a barking dog, a meowing cat, chirping sparrows and a mooing cow, each with its Japanese sound word.
Wanwan, nyā, chunchun and mōmō: the animal sounds every Japanese child knows.
JapaneseRomajiMeaning
犬がわんわん鳴く。Inu ga wanwan naku.The dog goes woof woof.
猫がにゃーと鳴いた。Neko ga nyā to naita.The cat went meow.
すずめがちゅんちゅん鳴く。Suzume ga chunchun naku.The sparrows go tweet tweet.
牛がもーもー鳴いている。Ushi ga mōmō naite iru.The cow is going moo.

Notice that nyā takes to before the verb. Single or stretched sounds such as nyā, kokekokkō or wan usually need to, the quoting particle, while doubled sounds such as wanwan can go straight before the verb. Morning sparrows are so familiar that chunchun appears in manga to show it is morning.

Farm animals, pets and wild animals

Here are the other common animal sounds. Most of them differ from English, so treat each one as a new word and learn it with its animal. Writers use katakana for a stronger, more sound-like feel and hiragana for a softer, picture-book feel.

JapaneseRomajiMeaning
にわとりがこけこっこーと鳴いた。Niwatori ga kokekokkō to naita.The rooster crowed cock-a-doodle-doo.
豚がぶーぶー鳴いている。Buta ga būbū naite iru.The pig is oinking.
カラスがかあかあ鳴いている。Karasu ga kākā naite iru.The crow is cawing.
ライオンだぞ。がおー!Raion da zo. Gaō!I'm a lion. Roar! (playing with a child)
AnimalJapanese wordSound in romajiNote
RoosterniwatorikokekokkōTakes to: kokekokkō to naku
PigbutabūbūAlso a child's word for a car
Sheep, goathitsuji, yagimēmēBoth animals use the same sound
HorseumahihīnGalloping hooves go pakara pakara
CrowkarasukākāHeard in every Japanese city
MousenezumichūchūChū alone is also casual for a kiss
Frogkaerukerokero, gekogekoKerokero is cute; gekogeko sounds louder
Lion, monsterraion, kaijūgaōUsed by children pretending to roar

The verbs: naku, hoeru and saezuru

Choosing the verb is as important as choosing the sound. Naku (鳴く) is the all-purpose verb for animals, birds and insects. Hoeru (吠える) is for barking and roaring, and it can sound aggressive. Saezuru (さえずる) is for birds singing prettily, and is a little literary. For a cat purring, people say nodo o narasu, to sound its throat, often with gorogoro.

JapaneseRomajiMeaning
隣の犬が夜中に吠えている。Tonari no inu ga yonaka ni hoete iru.The neighbour's dog is barking at night.
小鳥がさえずっている。Kotori ga saezutte iru.Little birds are singing.
猫がのどをごろごろ鳴らしている。Neko ga nodo o gorogoro narashite iru.The cat is purring.
犬にほえられてびっくりした。Inu ni hoerarete bikkuri shita.A dog barked at me and made me jump.

Be careful with naku when you write it. 鳴く is for animal calls; 泣く is for people crying. In speech they sound the same, so context does the work.

Baby talk: when sounds become names

Japanese parents and small children often use animal sounds as names. A toddler points and says wanwan for a dog or nyannyan for a cat, and parents answer in the same words. Some families say mōmō or mōmō-san for a cow and būbū for a car, but habits vary by family. Adults use these words only when talking to children or when they are being deliberately cute.

Between adults, the warm but grown-up forms are wanchan for a dog and nekochan or nyanko for a cat. Pet shops, vets and dog owners use wanchan all the time, so it is worth recognising.

JapaneseRomajiMeaning
見て、わんわんだよ。Mite, wanwan da yo.Look, a doggy! (to a toddler)
にゃんにゃん、かわいいね。Nyannyan, kawaii ne.The kitty is cute, isn't it? (to a toddler)
かわいいワンちゃんですね。Kawaii wanchan desu ne.What a cute dog. (to an owner, polite)
うちのにゃんこは寝てばかりです。Uchi no nyanko wa nete bakari desu.My kitty does nothing but sleep.

Seasonal sounds: cicadas, frogs and the bush warbler

Some animal sounds belong to a season. In early spring, the uguisu, the Japanese bush warbler, sings hōhokekyo, and many people associate it with the coming of spring. In early summer, frogs call kerokero or gekogeko from the rice fields at night. In midsummer, cicadas are everywhere: the large minminzemi calls mīn mīn, and the higurashi, heard at dusk in late summer, calls kanakana. Many Japanese people find these sounds nostalgic, though how strongly depends on where they grew up.

JapaneseRomajiMeaning
うぐいすがホーホケキョと鳴いた。Uguisu ga hōhokekyo to naita.The bush warbler sang hō-hokekyo.
セミがミーンミーン鳴いている。Semi ga mīn mīn naite iru.The cicadas are buzzing.
田んぼでカエルがけろけろ鳴いている。Tanbo de kaeru ga kerokero naite iru.The frogs are croaking in the rice field.
ひぐらしがカナカナ鳴くと、夏も終わりだね。Higurashi ga kanakana naku to, natsu mo owari da ne.When the evening cicadas call, summer's nearly over.

At a petting zoo with a friend's child

Picture a weekend outing to a farm park with a friend and her four-year-old son. The adults speak casually to each other, and everyone uses child-friendly words with the boy. This is exactly the kind of conversation where animal sounds come up naturally.

A farm park with a cow, a pig, a rooster and a sheep, each labelled with its Japanese animal sound.
Mōmō, būbū, kokekokkō, mēmē: a farm park is a picture book you can walk through.
JapaneseRomajiMeaning
ねえ、牛さんは何て鳴くかな?Nē, ushi-san wa nan te naku kana?You: Hey, what does the cow say?
もーもー!Mōmō!Boy: Moo moo!
正解!じゃあ、豚さんは?Seikai! Jā, buta-san wa?You: Right! And the pig?
ぶーぶー!Būbū!Boy: Oink oink!
英語だと、豚はオインクって鳴くんだよ。Eigo da to, buta wa oinku tte naku n da yo.You: In English, pigs say oink.
えー、変なの!Ē, hen na no!Boy: What? That's weird!

Common mistakes with animal sounds

  • Translating English sounds directly. A Japanese listener may not recognise woof or oink; use wanwan and būbū.
  • Forgetting to with single or long sounds. Say nyā to naku and kokekokkō to naku.
  • Using wanwan for dog with adults. Say inu, or wanchan to a dog owner.
  • Writing 泣く for animal calls. Animals, birds and insects take 鳴く.
  • Using hoeru for every animal. It fits dogs, wolves and lions, not cats or birds.

Learn the sounds with the animals

Ask Mocchi for /vocab animals and their sounds in Japanese, eight at a time. Mocchi shows each animal word with its sound and verb, then mixes them into a quick quiz and keeps a note of the ones you miss, so the next review starts with those.

For a listening check, play Listen & Pick on the games page with your own animal flashcards or a starter word pack. It trains you to recognise words by ear, which is exactly what you need when a child shouts an animal name at you.

Key points

A practical way to improve

Animal sounds are easy to learn and easy to forget, so practise them in context. First, say each sound with its full sentence, not alone: inu ga wanwan naite iru, not just wanwan. Second, describe what you hear right now outside your window, even if it is only a crow: karasu ga kākā naite iru. Third, practise talking to a small child: point at a picture and ask kore wa nan te naku kana, what does this one say? Mocchi, Unihongo's study assistant, can give you a /vocab set of animal words with their sounds and quiz you on them until the pairs stick.

FAQ

Frequently asked questions

What sound does a dog make in Japanese?

A dog says wanwan, written わんわん or ワンワン. A single bark is wan, and small dogs yapping are sometimes kyankyan. The verb is naku or, for barking in particular, hoeru: inu ga wanwan hoete iru, the dog is barking.

What does a cat say in Japanese?

A cat says nyā or nyān, often written ニャー or にゃーん. Repeated meowing is nyānyā. A purring cat is said to be gorogoro, as in nodo o gorogoro narasu, to purr. Cats also appear in the cute word nyanko, kitty.

Why is the verb naku used for animals?

Naku, written 鳴く, is the general verb for animals, birds and insects making their calls. It sounds the same as naku written 泣く, to cry, but uses a different kanji. Use hoeru for a dog barking or a lion roaring, and saezuru for birds singing in a pretty way.

Do Japanese adults say wanwan for dog?

Adults use wanwan as baby talk with small children. Among themselves, adults say inu, or wanchan, an affectionate word that many dog owners use. Using wanwan for dog in a normal adult conversation sounds childish or jokey.