- a fine line
- a fine distinction
Generated: This phrase is used to describe a very small or subtle difference between two things or concepts, indicating that they are closely related or almost identical yet can still be distinguished.
There is often just a fine line between success and failure.
Generated: Similar to its usage as "a fine line," this phrase can also refer to a delicate or nuanced difference, often used in discussions or analyses of complex issues.
In law, there is a fine distinction between legitimate self-defense and intentional harm.