adverb taking the 'to' particle, adverb
Onomatopoeia for a dog's bark. Often used adverbially with と or as a standalone sound.
The neighbor's dog is barking bow-wow.
The dog barked, 'woof woof'.
adverb taking the 'to' particle, adverb
Onomatopoeia for a baby or child crying loudly. Used with 泣く or と.
赤ちゃんがワンワン泣いている。
The baby is crying loudly.
adverb taking the 'to' particle, adverb
clamoring; echoing; loudly
Describes a loud, echoing noise, such as a crowd clamoring or a voice echoing. Often used with と.
会場はワンワンという歓声に包まれた。
The venue was filled with a loud, echoing cheer.
弟がワンワン泣いている。
My little brother is bawling his eyes out.
Voices echoed loudly through the gym.
Look, there's a doggy!
ワンワン used for clamor emphasizes a loud, echoing reverberation, while がやがや describes the indistinct buzz of many people talking at once.
犬 is the plain, standard word for dog, while ワンワン is the childish term used by or to small children.
ワンワン is baby talk that can mean 'dog' itself or imitate its bark, whereas ワンちゃん specifically refers to the animal in an affectionate way.
Katakana spelling is typical for onomatopoeia and the children's word for dog.
Hiragana spelling is also used, especially in children's books.
Onomatopoeic word imitating the sound of a dog barking. The children's noun sense derives from this sound.