The significance of civil unions in discussions of same-sex marriage lies in their role as a legal recognition of relationships between same-sex couples. Initially, civil unions were seen as a compromise, providing some legal rights similar to marriage without the title. However, this arrangement raised questions about equality and potential discrimination, with advocates arguing that true equality can only be achieved through marriage. The evolving debate around civil unions helped pave the way for broader acceptance and legal changes regarding same-sex marriage, highlighting ongoing struggles for LGBTQ+ rights and social recognition.