hum [hummed, humming, hums](to make sound with lips closed) verb [UK: hʌm] [US: ˈhəm]John heard someone humming his favorite tune. = John oyó a alguien tararear su melodía favorita.
tararearnoun
hum(tune created orally with lips closed) noun [UK: hʌm] [US: ˈhəm]John heard someone humming his favorite tune. = John oyó a alguien tararear su melodía favorita.