Verb (5-dan, る, intransitive)
1.  to get on (train, plane, bus, ship, etc.);  to get in;  to board;  to take;  to embark
2.  to get on (e.g. a footstool);  to step on;  to jump on;  to sit on;  to mount
3.  to reach;  to go over;  to pass
4.  to follow;  to stay (on track);  to go with (the times, etc.)
5.  to take part;  to participate;  to join
6.  to get into the swing (and sing, dance, etc.)
7.  to be deceived;  to be taken in
8.  to be carried;  to be spread;  to be scattered
usu. with an adverb of manner, e.g. よく乗る
9.  to stick;  to attach;  to take;  to go on
usu. with an adverb of manner, e.g. よく乗る