Be-soiling is a form of soiling or dirtying. Synonyms for be-soiling include staining, defiling, contaminating, muddying, and fouling. Staining refers to the act of leaving a mark or discoloration on something, while defiling is the act of polluting or corrupting something pure or sacred. Contaminating refers to the act of introducing something harmful or undesirable to something else, whereas muddying is the act of making something dirty or muddy. Fouling is a more general term that refers to any act of making something dirty or unclean. All of these words can be used interchangeably with be-soiling to describe an act of making something dirty or stained.