A DNA probe is a tool widely used in molecular biology and genetics for detecting specific sequences of DNA. However, there are several synonyms for DNA probe, depending on the context in which it is used. For example, the term nucleic acid probe is a more general term that encompasses both DNA and RNA probes. Similarly, hybridization probes and oligonucleotide probes both refer to short fragments of DNA that are used to detect complementary sequences. In fluorescent in situ hybridization (FISH), a technique that visualizes specific DNA sequences within cells, the term fluorescent probe is used. Overall, the interchangeable use of these terms can lead to confusion, so it's important to clarify the context and purpose of the probe being used.