1. a reason to believe that a bad situation will end soon or that a long and difficult job will be finished soon

1. As finals approached, she felt that at last she could see the light at the end of the tunnel.

2. They are falling deeper into debt, and there is no light at the end of the tunnel.

3. The work on our house has been going on for months, but we're finally starting to see a light at the end of the tunnel.

4. I had been horribly ill for two months before I began to see the light at the end of the tunnel.