Click chemistry is a powerful tool for the synthesis of new materials and bioconjugates. While the term "click reaction" has become ubiquitous in the field, there are several synonyms that are often used to describe the specific type of chemical reaction. Some of these include "modular chemical ligation," "selective reaction," and "efficiency reaction." Each of these terms emphasizes a different aspect of the click reaction, whether it be the ease with which modular building blocks can be assembled, the specific nature of the reaction with respect to functional groups, or the overall efficiency of the reaction in terms of yield and purity. Regardless of the terminology used, the click reaction remains an essential tool for researchers working in diverse fields such as materials science, drug discovery, and biological imaging.