Focusing on UNITY:
* Harmony: Suggests a peaceful and balanced coexistence.
* Cohesion: Highlights the strength and solidarity of different groups coming together.
* Inclusiveness: Emphasizes the acceptance and belonging of everyone.
* Interconnectedness: Stresses the shared experiences and interdependence of different groups.
Focusing on DIVERSITY:
* Multiculturalism: Recognizes and celebrates the different cultures within a society.
* Pluralism: Emphasizes the presence of multiple perspectives and identities.
* Heterogeneity: Highlights the wide variety of people and backgrounds.
Combining BOTH:
* Intercultural understanding: Focuses on building bridges between different cultures.
* Social equity: Aims for fairness and justice across all groups.
* Inclusive society: Encompasses both unity and diversity in a welcoming and accepting environment.
The best word to use depends on the specific context and the message you want to convey.