Follow

1. To go or come after in physical space. Follow that car!
2. To go after or come after in a sequence. B follows A in the alphabet.
3. To carry out in accordance to orders, instructions, etc. Follow these instructions to the letter.
4. To understand, to pay attention to. Do you follow me?
5. To watch, to keep track of (reports of) some event, sports or person. I followed the incumbent throughout the election.
6. To be a logical consequence of. It follows that if two number are not equal then one must be larger than the other.