Derja, also known as Darija, is a variety of Arabic spoken primarily in Morocco, Algeria, and Tunisia. It is characterized by its unique vocabulary, pronunciation, and grammar, which differ significantly from Modern Standard Arabic. Derja incorporates elements from Berber, French, and Spanish, reflecting the region's diverse history and cultural influences. In daily life, Derja is the primary language used in informal settings, such as conversations among friends and family. While it is not typically used in formal writing or education, it plays a crucial role in the identity and cultural expression of its speakers, making it an essential part of the local heritage.