Available Definitions:
1) n. - Any foul of filthy substance, as excrement, mud, dust, etc.; whatever, adhering to anything, renders it foul or unclean; earth; as, a wagonload of dirt.
2) n. - Meanness; sordidness.
3) n. - In placer mining, earth, gravel, etc., before washing.
4) v. t. - To make foul of filthy; to dirty.