Cases of word usage

1) (a mass of) white or grey water vapour floating in the sky (cloud)

2) (the process of) drops of liquid forming when vapour condenses (condensation)

3) tiny drops of moisture produced on cool surfaces from water vapour in the air (dew)

4) (to cause something) to change into vapour (evaporate)

5) (a pipe in an engine or machine for) gas, steam, vapour etc that is no longer wanted (exhaust)

6) vapour in the atmosphere at or near the earth's surface, thicker than mist and difficult to see through (fog)

7) a strong-smelling smoke, gas or vapour (fume)

8) (occasion when there is, an area with) water vapour in the air, at or near the earth's surface, less thick than fog (mist)

9) steam or water vapour (on a surface) (moisture)

10) (to cause liquid) to be changed into vapour (vaporize)