Meaning of the word topsoil in English

What does topsoil mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

topsoil

US /ˈtɑːp.sɔɪl/
UK /ˈtɒp.sɔɪl/

Noun

the upper, outermost layer of soil, usually the top 5–10 inches (13–25 cm), which is rich in organic matter and nutrients, making it the most fertile part of the soil

Example:
Gardeners often add fresh topsoil to their beds to improve fertility.
Erosion can lead to the loss of valuable topsoil.