knight-companion \ˈ ̷ ̷ ̷ ̷ˈ ̷ ̷ ̷ ̷\noun (pluralknights-companionsalsoknight-companions) : a knight belonging to an order of knighthood having only one class < the Order of the Garter … consists of the sovereign and twenty-five knights-companions — Valentine Heywood >