Compartir: Sharing is similar to difundir because it involves spreading something with others. However, while difundir often refers to spreading information or news, compartir usually refers to sharing personal belongings or experiences.
Publicar: Publicar means to publish. It is related to difundir because both involve making something available for others to see or access. However, publicar specifically refers to making something available in written or printed form.
Promocionar: Promocionar means to promote. It is related to difundir because both involve increasing awareness and visibility of something. However, promocionar often focuses on marketing strategies and activities aimed at attracting attention and generating interest in a product or service.