一週 いっしゅう Also written 1週 Meanings Noun, Adverb one week See also: 一週間 (いっしゅうかん). Kanji 一 one. Read as イチ. 週 week. Read as シュウ. Words containing 一週 一週間 (いっしゅうかん) one week 丸一週間 (まるいっしゅうかん) the whole week Jinuma: Japanese Dictionary · Word lists