The stratosphere is a layer of earth's atmosphere that begins at around 10 kilometers above the Earth's surface. Synonyms for stratosphere include the ozone layer, atmospheric layer, and upper atmosphere. The stratosphere is a crucial layer for life on Earth as it contains the ozone layer, which protects the planet from harmful ultraviolet radiation. Other related words to the stratosphere include aerospace, aeronautics, and aviation. Understanding the stratosphere is important for weather forecasting, climate modeling, and sustainable development. Overall, the stratosphere is a fascinating and critical part of Earth's atmosphere that deserves continued attention and study.