footbed

As nouns the difference between shoe and footbed

is that shoe is a protective covering for the foot, with a bottom part composed of thick leather or plastic sole and often a thicker heel, and a softer upper part made of leather or synthetic material shoes generally do not extend above the ankle, as opposed to boots, which do while footbed is a removable insole for a shoe.

As a verb shoe

is to put shoes on one's feet.

As nouns the difference between insole and footbed

is that insole is the inside sole of a shoe or other footwear while footbed is a removable insole for a shoe.