Cyclization, also known as ring closure, refers to the process of forming a cyclic compound from an open-chain compound. There are several synonyms that can be used in place of cyclization, including ring formation, ring closure, cyclic synthesis, cyclization reaction, and cyclization process. Cyclization is a crucial reaction in organic chemistry, and it is widely used in the synthesis of natural products, pharmaceuticals, and other important chemical compounds. The use of different synonyms for cyclization helps to broaden the scope of scientific literature and enables researchers to better understand the various aspects of this essential chemical process.