Third culture kids (TCK) or third culture individuals (TCI) are people who were raised in a culture other than their parents' or the culture of their country of nationality, and also live in a different environment during a significant part of their child development years. They typically are exposed to a greater volume and variety of cultural influences than those who grow up in one particular cultural setting. The term applies to both adults and children, as the term kid refers to the individual's formative or developmental years. However, for clarification, sometimes the term adult third culture kid (ATCK) is used.