This is the 418th most frequent Japanese word.
百
"百" means "hundred" in English.
The word '百' is used here to denote '100', specifically referring to the currency amount, 100 yen.
百円でアイスクリームを買いました。
I bought ice cream for 100 yen.
The word '百' is employed to symbolize the quantity '100', used in a metaphorical sense to denote 'a large number' of words.
百の言葉よりも、行動は雄弁です。
Actions speak louder than a hundred words.
The word '百' is used here as a numeral, specifying the quantity of over 100 species.