Superheterodyne is a word derived from the Greek words 'hetero,' meaning different, and 'dyne,' meaning power. It is usually used to describe a method of receiving and amplifying radio signals. Some synonyms for the word superheterodyne include heterodyne, double conversion, and intermediate frequency. Other common synonyms include radio receiver, tuner, transceiver, and oscillation. Additionally, some technical terms similar to superheterodyne are audio frequency, frequency mixer, and local oscillator. These synonyms help provide a better understanding of the superheterodyne technology and its applications in the field of electronics and communication.