Wörterbuch (en): Moisture / Damp / Humidity
de: 
Feuchte (f) / Feuchtigkeit (f)
fr: 
Humidité (f) / Moiteur (f)
it: 
Umido (m) / Umidità (f) 
es: 
Humedad (f ) / Hidratación (f)
The measure of the presence of water either in or on a material or substance or in a gas or space. Strong moisture is also referred to as wetness. In physics and material science one speaks of water content in general.