あくあくMeanings1adverbchirp; tweet; cawonomatopoeic or mimetic wordusually written using kana aloneMimetic adverb describing the sound of small birds chirping or crows cawing. Often used with quotative と or adverbial と.小こ鳥とりがあくあくと鳴ないている。The little birds are chirping.カラスがあくあくと鳴なきながら飛とんでいった。The crow flew off cawing.