trail off
US /treɪl ɔf/
UK /treɪl ɔf/

1.
menghilang, memudar
If a speaker or their voice trails off, they stop speaking or the sound of their voice becomes weaker and weaker and then stops.
:
•
His voice trailed off as he realized his mistake.
Suaranya menghilang saat dia menyadari kesalahannya.
•
The conversation trailed off into silence.
Percakapan menghilang menjadi keheningan.