週

Pattern visualization

Examples

1. 一週間休みました。▶ —
   I rested for a week.
2. 今週は忙しいです。▶ —
   I'm busy this week.

Collocations

Mnemonic

週 shuu — week time unit. Critical pattern: 一週 (one week as a point/unit) vs 一週間 (one full week as a duration) — adding 間 (aida, interval) marks duration explicitly. Same pattern: 一日 (ichinichi, one day) vs 一日間 (ichinichikan, for one day). Onyomi しゅう (shuu): 今週 (this week), 先週 (last week), 来週 (next week), 週末 (weekend), 週刊誌 (weekly magazine). The labor lexicon: 週休二日制 (shuukyuu futsuka sei, the five-day work week).

Quick check

1. Kanji shift between "for one week" and "this week"?

   • 一週間 (duration — adds 間) vs 今週 (point in time — no 間)
   • Both 一週間
   • Both 今週
   • Same kanji, no shift