knoll UK /nəʊl/US /noʊl/verb 4noun 3forms 3 verb4 •To ring (a bell) mournfully; to knell. •To arrange related objects in parallel or at 90 degree angles. •To sound (something) like a bell; to knell.If ever been where bells have knoll'd to church. — 1598 •To call (someone, to church) by sounding or making a knell (as a bell, a trumpet, etc).The parishioners were not, however, to be permanently deprived of this means of grace, and for many a year they have been “knolled to church” by the bells of the Town Hall, a comely building […] — 1891 noun3 •A small mound or rounded hill.On knoll or hillock rears his crest, / Lonely and huge, the giant oak. — 1813 •A rounded, underwater hill with a prominence of less than 1,000 metres, which does not breach the water's surface. •A knell. formsknolled · knolling · knolls