severity/ sɪ'vεrɪtɪ /

1.noun [of pain] [ damage] [ shortage] [ injury] [ illness] 
严重

2.noun [of punishment] 
严厉

3.noun [of winter] [ weather] 
严酷

4.noun [of manner] [ voice] 
(sternness) 严肃

5.noun [of architecture] [ dress] 
(austerity) 简朴