Trikes refer to three-wheeled vehicles, and there are several synonyms for this word that can be used interchangeably depending on the context of the sentence. One synonym for "trikes" is "tricycles", which is commonly used in reference to children's bicycles with three wheels. Another synonym is "three-wheelers", which can refer to any type of three-wheeled vehicle, including cars and motorcycles. "Tri-cars" are another term for three-wheeled cars, while "reverse trikes" refer to three-wheeled motorcycles with two front wheels and one back wheel. Finally, "three-wheel scooters" are synonymous with "trikes", and are often seen as a more maneuverable alternative to traditional motorcycles.