Segway

US /ˈseɡ.weɪ/
UK /ˈseɡ.weɪ/
"Segway" picture
1.

a two-wheeled, self-balancing electric vehicle for one person, with a platform for the feet and a vertical handle bar.

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Tourists often use a Segway to explore the city.
Learning to ride a Segway is easier than it looks.