MRE

1. More Remunerative Employment. A clause in a contract allowing for time off to temporarily take a higher-paying gig. For instance, an actor may need a day off to film a TV commercial. AEA rulebook: "The Actor shall be free to accept more remunerative employment (MRE) in the entertainment industry of not more than 1 week ..."

2. Meal Ready to Eat. Provisions for field military personnel. One website.