air
atom
atomic particles
band
base
basement
basis
bearing wall
bed
bedding
bedrock
belly
belt
bottom
bottom side
breech
brute matter
building block
buttocks
chemical element
component
constituent
core
couche
course
deck
downside
earth
element
elementary particle
elementary unit
fire
floor
flooring
fond
footing
foundation
fundament
fundamental
fundamental particle
gallery
ground
grounds
groundwork
hardpan
hyle
hypostasis
infrastructure
layer
ledge
substrasta
indigenous language
stratum
surface
totality
undercurrent