

子どもが赤い風船を持っています。
風船がとんでいきました。
パーティーで風船を使いますか。
"ふうせん(風船)" is in the lesson "Toys" (Level 11), along with 16 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.