The term DNA-binding substances refers to any chemical compounds, proteins, or enzymes that interact with DNA in some way. There are many different synonyms for this term, depending on the context and the specific type of substance being referred to. Some possible alternatives include DNA-binding proteins, genetic materials, nucleic acid-binding molecules, and DNA-affinity agents. Other terms that may be used include transcription factors, DNA-modifying enzymes, and chromatin-associated proteins. These terms are commonly used in molecular biology and genetics research, and they play a critical role in understanding the mechanisms that regulate gene expression, DNA replication, and other fundamental cellular processes.