By smelling your Feet
Narrow is used in the contexts of narrow roads or streets or a narrow-minded person. I guess narrow is used more figuratively and thin is used in physical contexts (thin body type, thin hair, thin atmosphere)
Spaghetti is thin and narrow; apply the sauce wide and thick.
A thin narrow strip of wood is either a lath or a slat.
thin
The opposite of narrow(thin) is wide.
No, they are synonyms
A needle.
thin, small, bony
Slender
The word narrow implies long and thin, as does slender.
reach your thin fingers into narrow places
narrow sparrow