The Haber process, also known as the Haber-Bosch process, is crucial in the production of ammonia through the combination of nitrogen and hydrogen gas under high pressure and temperature. Some common synonyms for the Haber process include ammonia synthesis, nitrogen fixation, and synthetic ammonia production. Additionally, the process is sometimes referred to as the Haber process of nitrogen fixation, or simply the nitrogen fixation process. Other synonyms may include nitrogen reduction or nitrogenation. Although the term "Haber process" is the most commonly used, these alternate names provide helpful context regarding the chemical reactions and overall significance of this key industrial technique.