The word "be soiled" refers to the state of being dirty or stained. There are several synonyms for this term including tarnished, sullied, sooty, grubby, and stained. Tarnished implies a loss of shine or luster, typically due to exposure to air or moisture. Sullied suggests being damaged or tainted in some way. Sooty is used to describe something covered in soot or smoke. Grubby implies an unclean or unwashed state. Stained suggests that there is a visible mark or discoloration on the object or surface. These synonyms may be used interchangeably depending on the context and the degree of dirtiness.