Nigerian English has developed as a distinct variety of English influenced by its history of colonization and the multilingual environment in Nigeria. It is an outer circle variety that is still developing standardized forms and undergoing nativization. Key features include vocabulary additions through processes like compounding and affixation, as well as phonological and grammatical differences compared to British English. While English serves important functions, its dominance also threatens indigenous Nigerian languages and cultural identity. There is ongoing debate around classifying and standardizing Nigerian English.