A UK fiance visa allows non-citizens to enter the UK to marry their British or settled partner. It requires documentation showing the relationship’s authenticity, financial stability, and intention to marry within six months. This visa grants a temporary stay, with the option to apply for a spouse visa once married. Applicants must meet strict criteria, and having a detailed application increases approval chances. Once in the UK, couples can start their new life together, with the fiance visa paving the way.