To circumnavigate a place, such as an island, a continent, or the Earth,'s to travel all the way around it by boat or ship. More recently, the term has also been used to cover aerial round-the-world flights. World circumnavigation In principle, if a person walks around either Pole, they'll have crossed all meridians, but this isn't generally considered a "circumnavigation." A basic definition of a world circumnavigation would be a route which covers at least a great circle, and in particular o… (More on Circumnavigate)