room and board . room and board {n. phr.} A room for rent with meals included. A room alone in that country costs only $10 a day, but room and board together run $22 a day. Categories: add yours {n. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: R Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Discuss