What is the meaning of the word "lead"?

Definitions:

a jumper that consists of a short piece of wire noun
- it was a tangle of jumper cables and clip leads
a position of leadership, especially in the phrase 'take the lead' noun
- They take the lead in any group.
an advantage held by a competitor in a race noun
- The runner took the lead at the last turn.
be conducive to verb
- The use of computers in the classroom lead to better writing
evidence pointing to a possible solution noun
- the police are following a promising lead
in baseball or softball, the position taken by a base runner preparing to advance to the next base noun
- The baserunner took a long lead off first.
take somebody somewhere verb
- We lead the prisoner to our chief.
tend to or result in verb
- This remark lead to further arguments among the guests
the introductory section of a story noun
- it was an amusing leadin to a very serious matter
the playing of a card to start a trick in bridge noun
- the lead was in the dummy