In 'Sanichigonjitsu no soron,' 'sanichi' (three, one) refers to the lesson of sanjo (the three vehicle; the three paths to enlightenment to be taken by all living beings) and ichijo (the One Vehicle) and the dispute of 'gonjitsu' refers to the dispute of 'gon' (the expediency or hypothetical idea which is a cue for understanding the truth) and 'jitsu' (the true idea).
「三一権実諍論」の「三一」とは、三乗と一乗の教えのことであり、「権実」の諍論とは、どちらが「権」（方便。真実を理解させるための手がかりとなる仮の考え）で、どちらが「実」（真実の考え）であるかを争ったことを言う。