【上位】 a state of opposition between persons or ideas or interests; "his conflict of interest made him ineligible for the post"; "a conflict of loyalties" 人、意見、利害が対立していること。
日/英 »
【下位】 the friction between a body and the surface on which it moves (as between an automobile tire and the road) (車のタイヤと道路の間のように)物体が動くときの表面との間の摩擦。
日/英 »