Keep in mind that an example of precipitation would be rain, snow, etc.
Say you started out as a cloud (a gas). To turn into an ocean, lake, river, or ground water (a liquid), you would have to go through the process of precipitation. This would be turning a gas into a liquid.
To go from an ocean, lake, river, or ground water (a liquid) in to a cloud (a gas), you would have to go through a process called Evaporation.
If a water source (liquid) turns into a glacier (solid) it needs to go through the process if freezing.