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 idea of powering ships with rigid wings dates back at least to the nineteen-sixties, when an English aeronautics engineer named John Walker spent his weekends in a cranky, old yacht.