Definition of "late-night" []

• Occurring late at night: a late-night television show. (adjective)
• Open late at night: a late-night diner. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "A half dozen of the most senior American national security officials were summoned to a hurriedly called late-night emergency meeting in the White House Situation Room."
• "They called it the war of pyjamas because they'd take people from their beds at night, that's what they're doing now, he said, referring to late-night raids made by the security forces on the fringes of the city."
• "For instance, the Barry team called a late-night press conference to denounce Watts’s psychiatric fitness, and she showed up in the middle of it, loudly denouncing their denunciation."