The word "harth" has several synonyms that can be used in different contexts. The most common synonym for "harth" is "hearth," which refers to the floor in front of a fireplace. Other synonyms include, "fireplace," "chimney corner," and "inglenook." These words are often used interchangeably to describe the same thing - the area where fire burns. However, each word carries a different connotation, and it's up to the writer or speaker to use the right synonym based on the context and the tone of the message. For instance, "hearth" may sound more formal, while "inglenook" sounds more cozy and inviting.