Kerfs refer to the groove or slit made on a piece of wood or other materials. This word is often used in woodworking and construction industries. However, there are other synonyms that can be used instead of kerfs, including slots, incisions, cuts, grooves, notches, slits, scores, and channels. These words can be used interchangeably depending on the context where it is being used. For instance, if you are discussing the process of making wooden joints, you can use the synonyms to avoid repetition and make your writing more engaging. Overall, using synonyms for kerfs can help improve your writing style, making it more creative and diverse.