There are various synonyms for the term "five-o-clock shadow." This refers to the facial hair growth that appears on a man's face after shaving and the hair begins to reemerge. Some of the common synonyms for this term are stubble, beard shadow, whiskers, scruff, and bristles. These words describe the short hairs that appear on a man's face, chin, and neck. The concept of the five-o-clock shadow suggests that a man's beard growth becomes most visible around the late afternoon. These synonyms can be used interchangeably depending on personal preference and the need to describe varying degrees of beard growth.