also: やお
numeric
800; eight hundred
The number 800. Used in counting, prices, years, and other numerical contexts.
この本は八百ページもある。
This book has as many as 800 pages.
参加者は八百人を超えた。
The number of participants exceeded 800.
noun
Only with reading やお
Figurative use meaning a great many or countless things. Often appears in set phrases like 八百屋 (greengrocer) or 八百長 (fixed match), but can also be used independently with the reading やお.
「八百」を「やお」と読むと、数が多いことを表す。
When 八百 is read as やお, it expresses a large number.
Mixed numeral-kanji spelling; occasionally seen but less common.
Arabic numeral spelling, common in horizontal writing and technical contexts.
Kanji-numeral hybrid spelling; rarely used in modern writing.
Kana spelling for the reading やお, used in the sense of 'multitude'.
八百 is the regular Japanese numeral for 800, combining 八 (eight) and 百 (hundred). The reading やお is an older, now mostly bound form used in compounds to mean 'a great many'.