1 （用于火车、公共汽车或飞机时刻表）到达（时间） Arr. is a written abbreviation for (书面缩略=) arrives. It is used on timetables to indicate what time a bus, train, or plane will reach a place. （用于火车、公共汽车或飞机时刻表）到达（时间）

2 （音乐作品）由…改编 Arr. is a written abbreviation for (书面缩略=) arranged. It is used to show that a piece of music written by one person has been rewritten in a different way or for different instruments by another person. （音乐作品）由…改编