belt
Strap made of various materials often with a buckle; it is worn around the waist to adjust the fit of a garment, hold it in place or adorn it.
tip 
End of the belt that passes through the buckle.
punch hole 
Perforation in the belt through which the tongue passes.
belt loop 
Flat ring next to the buckle usually made of the same material as the belt; one end of the belt passes through it.
buckle 
Fastener made up of a ring that secures the two ends of a belt.
tongue 
Metal tip that pivots on the buckle’s axis and fits into a hole, buckling the belt.
panel 
Smooth side of a piece of leather.
top stitching 
Stitching used to embellish the belt.