This Element introduces the conceptualization of language weaponization, examining how dominant groups use language to control, marginalize, and harm minoritized communities. It proposes a three-phase framework- (1) stigmatization and othering, (2) dehumanization, and (3) harm-to explain how linguistic practices evolve from prejudice to violence, shaping both social structures and individual identities. Through analysis of the dynamics between dominant and minoritized groups and case studies focused on LGBTQ+ communities, the Element reveals the historical and ongoing consequences of weaponized language. Moving beyond critique, it advances a vision for transformation by positioning applied linguists as central actors in promoting societal healing. Further, storytelling is presented as a vital practice for (re)humanization and collective restoration. Ultimately, this Element invites readers to critically examine how language constructs power and to imagine its potential as a force for healing, peace, and goodness across diverse societies.