Oneness/ˈwʌnnəs/ Definition 1 of 2Pro Tip 1/3Emotional Connection Oneness often expresses a deep emotional bond with something or someone. Meditating by the lake, I experienced a profound oneness with the universe. Pro Tip 2/3Metaphorical Use Oneness is often used metaphorically to speak about harmony or connection. The team's oneness was evident in their collaborative effort. Pro Tip 3/3Not Physical Oneness usually refers to a feeling or concept, not a physical union. Their oneness in goals led to the project's success.