

風邪をひいて、学校を休みました。
風邪はもう大丈夫ですか。
風邪の時は、早く寝てください。
"かぜ(風邪)" is in the lesson "Sickness" (Level 9), along with 17 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.