jet set adjective 1noun 1verb 1forms 5 adjective1 •Relating to the lifestyle of the jet set. noun1 •A social class of wealthy people who travel for pleasure.And when the snow falls you're found in St. Moritz / With the others of the jet set / And you sip your Napoleon brandy / But you never get your lips wet, no you don't — 1969 verb1 •To follow the lifestyle of the jet set. formsjet setted · jet-setted · jet setting · jet sets · jet-sets