deal in . deal in {v. phr.} To sell; do business in a certain commodity. Herb's firm deals in sporting goods. Categories: add yours business {v. phr.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: D Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Add my comment