

日曜日はいつも家でゆっくりします。
日曜日に公園で走りました。
この店は日曜日も開いていますか?
"にちようび(日曜日)" is in the lesson "Months and days" (Level 7), along with 18 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.