

歯が痛いから、歯医者に行きます。
歯医者は好きじゃない。
近くにいい歯医者はありますか。
"はいしゃ(歯医者)" is in the lesson "Treatment" (Level 13), along with 13 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.