Contig is a term commonly used in genetics and molecular biology to describe contiguous sequences of DNA or RNA. However, there are several synonyms that can be used to describe this concept, such as contiguous sequence, stretch, block, segment, or piece of genetic material. These terms describe a sequence of genetic material that is physically linked together, usually with no gaps, and can refer to either a single gene or an entire chromosome. While the term contig is often used in the context of genome sequencing and assembly, the use of synonyms can help to provide a broader understanding of the concept to individuals unfamiliar with molecular biology.