A lane is a narrow road, especially in the country.

Lane is also used in the names of roads, either in cities or in the country.

A lane is a part of a main road which is marked by the edge of the road and a painted line, or by two painted lines.

At a swimming pool or athletics track, a lane is a long narrow section which is marked by lines or ropes.

A lane is a route that is frequently used by aircraft or ships.

If you say that someone lives their life in the fast lane, you mean that they live in a way which seems full of activity and excitement but which often involves a lot of pressure.