topsoil (n.)
- acres
- alluvion
- alluvium
- band
- bed
- bedding
- belt
- clay
- clod
- course
- crust
- deck
- dirt
- dust
- earth
- floor
- freehold
- gallery
- glebe
- grassland
- ground
- land
- layer
- ledge
- level
- lithosphere
- marl
- measures
- mold
- overlayer
- region
- seam
- shelf
- sod
- soil
- stage
- step
- story
- stratum
- subsoil
- substratum
- superstratum
- terrain
- territory
- thickness
- tier
- woodland
- zone
