Here's what that means:

* No change in velocity: Constant speed means the object's velocity (which includes both speed and direction) doesn't change.

* Uniform motion: The object is moving at a steady pace, not speeding up or slowing down.

* Example: A car driving at 60 miles per hour on a straight road is moving at a constant speed.

Key things to remember:

* Constant speed doesn't necessarily mean constant velocity: A car going around a circular track at a constant speed is actually changing its velocity because its direction is changing.

* Real-world examples are rare: It's difficult to achieve perfectly constant speed in real life due to friction and other factors. However, many things approximate constant speed, like a train on a straight track or a plane cruising at altitude.

Let me know if you'd like more examples or want to explore related concepts!