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.