The start of the twenty-third hour of the day on the 24-hour clock i.e. 22:00. / The number two thousand two hundred. / The year 2200.

The start of the last hour of the day on the 24-hour clock i.e. 23:00. / The number two thousand three hundred. / The year 2300.

The start of the twenty-second hour of the day on the 24-hour clock i.e. 21:00. / The number two thousand one hundred. / The year 2100.

(idiomatic) Some unspecified hour in the early morning (implies an unpleasant time to be awake)

(idiomatic, slang) To be authentic, true to oneself.

Alternative form of $100 hamburger

plural of hundred-dollar hamburger

plural of hundred-year storm

A storm of such force that it occurs only once every one hundred years approximately.

The cardinal number 100,000