Meaning

1. to enter, to come into [auxiliary sein]
2. to occur, to eventuate [auxiliary sein]
3. to join a club association etc. [+ in (accusative)] [auxiliary sein]
4. to advocate, to support, to stand for, to champion [+ für (accusative)] [auxiliary sein]
5. to kick [+ auf (accusative)] [auxiliary haben]
6. to open (something e.g. a door) by kicking [auxiliary haben]
7. to get something in one's foot by stepping on it [+ accusative (object)] [auxiliary haben]
8. to wear in (shoes)