let be . let be {v.} To pay no attention to; disregard; forget. Let her be; she has a headache. Compare: LET ALONE. Categories: add yours {v.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: L Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Comment on this entry