Elevon is a term used in aerospace engineering to describe a control surface on an aircraft that combines the functions of an elevator and an aileron. However, there are several synonyms for this word that can be used in various contexts. Some of the synonyms for elevon include "flaperon," "ailervator," "tailerons," and "flaperails." These terms describe similar control surfaces that are used in various types of aircraft, including gliders and unmanned aerial vehicles. While the term elevon is commonly used in aviation, knowing the synonyms for this word can be helpful when discussing and understanding various aircraft and control systems.