Stationary
"Stationary" refers to objects that are not moving or are fixed in place. This term is often used in physics to describe an object that remains at rest relative to a specific reference point. For example, a parked car is stationary when compared to the ground.
In a different context, "stationery" refers to writing materials, such as paper, envelopes, and pens. This term is commonly used in offices and schools where these supplies are essential for communication and organization. While the two words sound similar, their meanings are distinct and serve different purposes.