"Embrace multiculturalism" is a synonymous phrase to "celebrate cultural diversity." This phrase encourages individuals to appreciate and recognize the varied customs and traditions of different ethnic and racial groups. "Value diversity" is also a fitting synonym as it emphasizes the importance of recognizing and respecting differences amongst people. "Promote inclusion" is a similar phrase that encourages individuals to make an effort to include all cultures and ensure that every individual feels welcomed and valued. "Acknowledge differences" is another phrase that highlights the importance of acknowledging differences while embracing different communities. Ultimately, all of these phrases encourage individuals to embrace and appreciate the uniqueness of each culture.