croon
/krʊn/Definitions
1. verb
to sing in a smooth, rich, and often sentimental manner
“She crooned a lullaby to put the baby to sleep.”
2. noun
a low, smooth, and often sentimental song
“The singer’s croon captured the audience’s hearts.”
3. noun
a person who sings in this style
“The crooner was famous for his velvety voice.”