

天ぷらは、つゆにつけるとおいしいです。
パンをスープにつけて食べるのが好きです。
このお菓子は牛乳につけないほうがおいしいですよ。
"つける(漬ける)" is in the lesson "Eating" (Level 20), along with 9 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.