ring hollow

:  a circular band for holding, connecting, hanging, pulling, packing, or sealing

:  a circlet usually of precious metal worn especially on the finger

:  a circular line, figure, or object

:  to provide with a ring

:  to place or form a ring around :  encircle

:  girdle

:  to sound resonantly or sonorously

:  to be filled with a reverberating sound :  resound

:  to have the sensation of being filled with a humming sound

:  a set of bells

:  a clear resonant sound made by or resembling that made by vibrating metal

:  resonant tone :  sonority

:  an unfilled space :  cavity, hole

:  a depressed or low part of a surface

:  a small valley or basin

:  having an indentation or inward curve :  concave, sunken

:  having an unfilled or hollowed-out space within

:  lacking in real value, sincerity, or substance :  false, meaningless

:  to remove the inside of :  to make hollow (see ²hollow)

:  to become hollow

:  so as to have a hollow (see ²hollow 4) sound :  in a way that reflects a lack of real value, sincerity, or substance

:  completely, thoroughly