Definitions of underneath:

• adverb:   under or below an object or a surface

  Example: "We could see the original painting underneath"

• adverb:   beneath by way of support

  Example: "A house with a good foundation underneath"

• adverb:   lower down on the page

  Example: "Diagrams with figures underneath"

• adverb:   on the lower or downward side

  Example: "A chest of drawers all scratched underneath"