fusspot vs wet blanket

fusspot and wet blanket both are nouns.

Word	Noun	Adjective	Verb	Adverb
fusspot	Yes	No	No	No
wet blanket	Yes	No	No	No

As nouns, wet blanket is a hypernym of fusspot; that is, wet blanket is a word with a broader meaning than fusspot:

Other hypernyms of fusspot include killjoy, party pooper, spoilsport.

fusspot (noun)	wet blanket (noun)
thinks about unfortunate things that might happen	someone who spoils the pleasure of others