गुनगुनाना angolul

croon [crooned, crooning, croons]▼verb
[UK: kruːn] [US: ˈkruːn]

crooning▼noun
[UK: ˈkruːn.ɪŋ] [US: ˈkruːn.ɪŋ]

hum [hummed, humming, hums]▼verb
[UK: hʌm] [US: ˈhəm]

intone▼[UK: ɪn.ˈtəʊn] [US: ˌɪnˈtoʊn]