accentor UK /əkˈsɛntə/US /əkˈsɛn.tɚ/ noun3 •Any bird of the Eurasian genus Prunella, such as the dunnock. •(no longer used) One who sings the leading part; the director or leader. •(no longer used) The ovenbird, Seiurus aurocapilla. formsaccentors