いっぺん Also written 一遍 Meanings Noun, Adverb once; one time See also: いっぺんに. Noun suffix exclusively; only; alone (after a noun) See also: 正直一遍 (しょうじきいっぺん). See also: 義理一遍 (ぎりいっぺん). Example sentences 爪を切るのとアイロンがけは、一遍にはできないよ。I can't cut my nails and do the ironing at the same time! Words containing いっぺん いっぺんに (all) at once もういっぺん once more Jinuma: Japanese Dictionary · Word lists