Are clouds a gas, liquid, and/or solid? Are clouds a solid, liquid, or gas?

I have been looking online and they are often described ambiguously as a "mass". For instance, from NASA:


  A cloud is a mass of water drops or ice crystals suspended in the
  atmosphere. Clouds form when water condenses in the sky. The
  condensation lets us see the water vapor. There are many different
  types of clouds. Clouds are an important part of Earth’s weather and
  climate.


Since they describe it as a vapor, that makes me think it is indeed a gas. But condensation is by definition the change of state from a gas to a liquid. So that makes it sound like it could be a liquid, or contain liquid droplets rather than "freely moving" molecules that typically make up a gas.

But at another web site, which doesn't seem all that authoritative, it says that clouds are a solid, liquid, and gas simultaneously! 


  A cloud is a liquid, a solid, and a gas.


That does seem intriguing. If I remember correctly, liquids are supposed to be incompressible, and clouds are likely compressible.
The cloud that you see is a mixture of solids and liquids.  The liquid is water and the solids are ice, cloud condensation nuclei and ice condensation nuclei (tiny particulates that water and ice condense on).  The invisible part of clouds that you cannot see is water vapor and dry air.  The majority of the cloud is just plain air in which the invisible water vapor is mixed with and the very tiny water drops and ice particles are suspended in.

A cloud is a mixture of gas, liquid and solids.