This is the 6372nd most frequent Japanese word.
シャトル
"シャトル" means "shuttle," referring to a transport service, vehicle, or object that moves back and forth between two points.
シャトル in this sentence refers to 'シャトルバス', which means 'shuttle bus', typically a vehicle that runs on a designated route for convenience.
私はシャトルバスで空港に行きました。
I went to the airport using a shuttle bus.
シャトル here is a part of 'シャトルコック', referring to the 'shuttlecock' used in badminton.
シャトルコックをうまく打つのは難しいです。
Hitting the shuttlecock correctly is difficult.
シャトル in this sentence pertains to 'スペースシャトル', or space shuttle, used as a spacecraft.