Mountaintop/ˈmaʊntntɑːp/ Definition 1 of 2Pro Tip 1/3Physical Journey Refers to actual climbing, suggesting adventure and effort. They embarked on a journey to the mountaintop. Pro Tip 2/3Achievement Context Used to describe an accomplishment after a long or tough journey. She viewed the difficult project as her mountaintop. Pro Tip 3/3Visualizing Success Implies a visual goal, ideal for motivation and goal setting. Visualize the project as your mountaintop and climb!