The term "libber" is a slang word that was popularized in the mid-20th century to describe women who advocate for equal rights, especially in the realm of gender and sexuality. In recent years, this word has fallen out of favor due to its associations with a particular era and its sometimes derogatory connotations. As a result, there are many other synonyms that have emerged to describe women who stand up for their rights, such as feminist, women's rights advocate, gender equality advocate, and social justice advocate. These terms are more widely recognized and accepted and reflect society's evolving attitudes towards women's empowerment.