noun the tolling of a bell; a knell.
2. knoll ·vi to sound, as a bell; to knell.
3. knoll ·noun a little round hill; a mound; a small elevation of earth; the top or crown of a hill.
4. knoll ·vt to ring, as a bell; to strike a knell upon; to toll; to proclaim, or summon, by ringing.