Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
"The wind-propelled balloon will circumnavigate the globe at 33.5 kilometres or 110,000 feet above the earth for as long as possible, which could be up to 100 days, collecting data on the balloon itself and the Southern Hemisphere flight environment.