1"More"; "even more" — an adverb indicating an increase in amount or degree, as in "I want you to do more" or "more of".
もっと勉強しないと合格できない。
You need to study more or you won't pass.
もっとゆっくり話してください。
Please speak more slowly.
もっと時間があれば旅行したい。
If I had more time, I'd like to travel.
あのレポートをもっと詳しく書いてください。
Please write that report in more detail.