(rì, ㄖˋ) day; sun; date; day of the month; abbr. for Japan [CE-DICT]
本
(ほん) (n) (1) (See ご本・ごほん) book; volume; (pref) (2) main; head; this; our; present; real; (ctr) (3) counter for long cylindrical things; counter for films, TV shows, etc.; counter for goals, home runs, etc.; (P) [EDICT]
(běn, ㄅㄣˇ) roots or stems of plants; origin; source; this; the current; root; foundation; basis; (classifier for books, periodicals, files etc) [CE-DICT]
因
(いん) (n) (1) cause; factor; (2) {Buddh} (See 縁・えん・5) hetu (direct cause, esp. as opposed to indirect conditions); (3) (See 因明) the basis of one's argument (in hetuvidya); (P) [EDICT]