"Thingness" refers to the quality or state of being a thing. There are several synonyms to refer to this concept, such as objectivity, concreteness, tangibility, materiality, embodiment, and substantiality. The word objectivity implies a sense of factual existence that can be proven by evidence. Concreteness suggests a strong and clear representation of something. Tangibility indicates the quality of being perceivable by touch. Materiality relates to the physical existence of something that can be touched, seen, and felt. Embodiment is the manifestation of an idea or concept in a tangible form. Lastly, substantiality refers to the extent of being real or having a material existence. All these synonyms effectively describe the state of being a thing and help us understand this concept better.