I UK [sɔɪl] / US noun [countable/uncountable]
Word forms "soil":
singular soil plural soils
1) the substance on the surface of the Earth in which plants grow

She scraped away some soil and grasped the top of the root.

The dry rocky soil is suitable for planting vines.

2) the soil
literary farming as a job or as a way of life

It's hard these days to make a living from the soil.

on British/US/Japanese etc soil — present or living in the UK, the US, Japan etc

He disappeared as soon as he landed on US soil.

II UK [sɔɪl] / US verb [transitive]
Word forms "soil":
present tense I/you/we/they soil he/she/it soils present participle soiling past tense soiled past participle soiled formal
to make something dirty

She was afraid she might soil her new dress.

Derived word:
UK / US adjective

soiled clothing

English dictionary. 2014.