Learn a word: evaporate

evaporate, verb, /ɪ'væpəreɪt/

1 

if a liquid evaporates, or if heat evaporates it, it changes into a gas. 
to change from a liquid into a gas.

Most of the water had evaporated.
The sun evaporates moisture on the leaves.
Let the liquid start to evaporate.
The heat evaporated the water.

2 

if a feeling evaporates, it slowly disappears. 
to go away suddenly. 
to disappear or vanish.

Hopes of achieving peace are beginning to evaporate.
His courage had evaporated away.
The opportunity evaporated before he could act on it.

evaporation, noun, /ɪˌvæpəˈreɪʃən/
water loss through evaporation.

evaporative, adjective, /ɪˈvæpəˌreɪtɪv/
evaporative cooling.

evaporator, noun, /ɪˈvæpəˌreɪtɚ/
The boiling takes place in machines called evaporators.

vapour (British English) or vapor (American English), noun, /ˈveɪpər/
a mass of very small drops of a liquid which float in the air, for example because the liquid has been heated.
water vapour.