a fine line

A very narrow division between two deceptively similar things, one of which is worse than the other. As a new parent, you learn that there's a fine line between looking out for your child's welfare and being overprotective.

a fine/thin line

if there is a fine line between one thing and another, they are very similar although the second thing is bad (often + between ) There's a thin line between courage and foolishness.

Common Names:

Name	Pronounced	Usage
Hanley	['hænli]
Wilson	['wilsn]
Milford	['milfəd]
Aroha	-	Maori
Cearra	-	English (Rare)
Ambrosios	-	Ancient Greek