一いっ世せい一いち元げんMeaningsNoun1. the practice of assigning one era name to one emperor (Yojijukugo)Kanji used一one世world元originPitch accentいっせいいちげんComposed of一いっ世せいgeneration; lifetime; the age; the day; the first (e.g. Elizabeth I); issei; first-generation Japanese (or Korean, etc.)Noun一いち元げんsingle element; unitary; one era; one unknownNoun