v.1. To guide someone forward: The general led the troops on to battle.
2. To mislead or deceive someone: It's not right to lead your date on when you're not really interested. I thought they would buy the house, but they were leading on the realtor.
3. To keep someone in a state of expectation or hope; entice someone: That recruiter led me on with promises of employment. The college counselor led on the students with anecdotes of successful applicants.