This is the 637th most frequent Japanese word.
多
"多" means "many" or "much."
The word 'たくさん' uses '多' to indicate a large quantity of books.
彼の家にはたくさんの本があります。
There are many books in his house.
The word '多く' with '多' denotes 'many' as in a large number of people.
多くの人々がこのイベントに参加しました。
Many people participated in this event.
The phrase '雪が多い' uses '多い' derived from '多' to describe places with significant snowfall.