[{"Bold_text": "noun", "List Items": ["Aeronautics, Rocketry.the action of an aircraft in becoming airborne or of a rocket in rising from its launching site under its own power.the instant when such action occurs.", "the action of an aircraft in becoming airborne or of a rocket in rising from its launching site under its own power.", "the instant when such action occurs.", "Informal.the launching or commencement of a project, plan, etc.:The liftoff of the sales campaign will be next month."]}, {"Bold_text": "adjective", "List Items": ["able to be shifted or removed by lifting off; capable of being lifted off:I organized the workshop with these liftoff adhesive labels for bins and shelves.We used magnetic liftoff nameplates on the lockers."]}]