Living in the elsewhere looks like being lock in a place, and it conveys ethnic, social, cultural, racial, national, political, regional, and linguistic identities to those persons. The study of migrants’ identities is a very vast field. Despite the progress of scientific researches on that issue, the topic can be tackled in the sense of migrants’ identities inside the different borders today. But, migrants’ living conditions in borders can actually favor the use of Language to express or deny some identities. Similarly, the selected locutionary acts in ‘The Vanishing Half’, bluntly shows utterances acts denying or affirming migrants’ identities. This analysis is done in the lens of speech act theory. Therefore, the present work aims at showing throughout tangible facts, the performatives actions that influence migrants’ life as well as their identities in the novel. The language is used by characters in such way that it fits with their identities in the context of frontiers. These elements are so closely interwoven that words are inscribed with ideological meanings in emigrants’ mind.