What term describes a mild or indirect word used to replace one that is harsh or offensive?

The term that describes a mild or indirect word used to replace one that is harsh or offensive is euphemism. Euphemisms help soften the impact of difficult or unpleasant topics, allowing for sensitive conversations regarding issues that may be taboo or distressing. For example, saying "passed away" instead of "died" is a euphemism that seeks to treat the subject with more compassion.

Recognizing euphemisms enhances the understanding of how language shapes perception and the importance of word choice in communication. In literature, authors often employ euphemisms to convey sensitive topics subtly or to reflect cultural norms regarding discussions of mortality, sex, or illness.

The other options do not pertain to this function: euphony refers to pleasant sounding language, epiphany is a moment of sudden revelation or insight, and epithet is a descriptive term or phrase used to characterize a person or thing. Each of these terms has a distinct meaning that does not align with the definition of a euphemism.