I think you might be referring to the Norwegian word "integrasjon" which means "integration" in English. Here's an analysis of synonyms for the English word "integration":
Assimilation
“Assimilation” refers to the process by which individuals or groups become part of a new culture and adopt its values, behaviors, and social norms. For example, immigrants might go through a process of assimilation as they learn the language and customs of their new country. In contrast to “integration,” assimilation often implies a more complete or thorough adoption of the dominant culture's ways. Integration, on the other hand, can involve maintaining some aspects of one's original identity while also becoming part of a larger whole.
Incorporation
“Incorporation” means to include or combine something into a larger entity. For example, a new department can be incorporated into a company's structure. In the context of social or cultural settings, it's similar to integration in that it emphasizes the act of bringing something (like a group of people) into a pre - existing framework. However, “incorporation” might focus more on the administrative or structural aspect of the process, such as adding something to a system, while “integration” has a broader connotation that can involve social, cultural, and psychological aspects.
Blending
“Blending” implies a mixing or fusing of different elements together. In a social context, it could mean different cultures or groups blending to form a more unified whole. For example, in a multicultural neighborhood, the different ethnic traditions might be blending over time. “Blending” emphasizes the smooth combination of different parts, similar to integration, but it might put more stress on the result of a harmonious mix, whereas “integration” also encompasses the process and the various interactions that lead to that combination.
Unification
“Unification” means the act of bringing together different parts into a single unit. For example, the unification of two countries implies a political and administrative joining. In the context of integration, unification can be seen as an end - goal where different individuals or groups are unified under a common identity or structure. However, “unification” often sounds more formal and can imply a more forceful or top - down process, while “integration” can happen more organically and at different levels (social, cultural, economic).