signify (noun)
significance
amazing (noun)
amazement
optimist (noun)
optimism
populate (noun)
population
pay (noun)
payer or payee
enter (noun)
entry
member (noun)
membership
psychology (noun)
psychologist
bored (noun)
boredom
sober (noun)
sobriety
close (noun)
closure
useful (noun)
usefulness
secret (noun)
secrecy
depend (noun)
dependence
break (noun)
breakage
likely (noun)
likelihood
precise (noun)
precision
renew (noun)
renewal
simple (noun)
simplicity
orate (noun)
orator