1The chirping or twittering of small birds; the short, high-pitched sounds birds make.
早朝、窓の外から小鳥のさえずりが聞こえた。
Early in the morning I heard the chirping of small birds outside the window.
森の中は鳥のさえずりでにぎやかだった。
The forest was lively with birdsong.
彼はさえずりを録音して野鳥観察の資料にした。
He recorded bird chirps to use as material for birdwatching research.
2A culinary term referring to whale tongue (the tongue meat of a whale), used as a food item in some cuisines.
郷土料理の店で鯨のさえずりを味わった。
I tasted whale tongue at a local specialty restaurant.