THz, or terahertz, is a measure of frequency that is often used in technology and science applications. It refers to one trillion hertz, which is a very high frequency range. Synonyms for THz may include "tera cycles per second," "trillion hertz," or "THz wavebands." In the field of physics, THz is often used to describe the frequency range of electromagnetic radiation, which has many practical applications in fields such as medicine, security, and communication. Other synonyms for THz include "microwave range," "radio frequency," and "broadband frequency." Overall, THz is an important term used to describe a significant frequency range that plays a big role in modern technology.