creative
creativity
blind
blindness
secure
security
pollute
pollution
active
activity
popular
popularity
accurate
accuracy
relax
relaxation
kind
kindness
imagine
imagination
differ
difference
lonely
loneliness
weak
weakness
educate
education
predict
prediction
stupid
stupidity
import
importance
lazy
laziness
occur
occurrence
appear
appearance
collect
collection
private
privacy
quiet
quietness
fit
fitness