The term that best describes the process of acquiring a culture is "enculturation."
Enculturation is the process by which individuals learn and acquire the values, beliefs, customs, and behaviors of their own culture. It involves the transmission of cultural knowledge and practices from one generation to another through various means such as family, education, socialization, and experience. Enculturation begins in early childhood and continues throughout life, as individuals interact with others in their society and learn from their experiences.
The process of enculturation is critical to the functioning of societies, as it ensures that members of a culture share a common understanding of how to behave and interact with one another. Enculturation also helps to establish a sense of shared identity and cultural heritage, which is essential for social cohesion and the preservation of cultural traditions over time.