He repeatedly emphasized that both kids and adults can enjoy the Lion King show.
Something that goes towards being frequent is something that is frequently happening.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you: Something that happens frequently is something that has really caught on. People want to do this thing frequently, because it is so chic (しき).