The cardinal number immediately following ninety-seven — ninety plus eight — and preceding ninety-nine.

The cardinal number immediately following sixty-seven and preceding sixty-nine.

The cardinal number immediately following thirty-seven and preceding thirty-nine.

The cardinal number immediately following fifty-seven and preceding fifty-nine.

The cardinal number immediately following forty-seven and preceding forty-nine.

(US, military) A period of 48 hours' leave, i.e. two days.

(bodybuilding) An exceptionally well-developed set of abdominal muscles in which eight distinct portions of muscle are visible.

(In both the 12-hour clock and the 24-hour clock) The start of the ninth hour of the day; 8:00 a.m. (08:00).

The cardinal number occurring after seven hundred ninety-nine and before eight hundred one, represented in Arabic numerals as 800.

(historical) The peso, a silver coin that was minted in Spain and its colonies from the end of 15th century, equal to eight reales (hence the name).