The correct spelling is gymnast (someone involved in in gymnastics).
daddies.
Clouds
That is the correct spelling "princesses" for more than one princess.
Trophies
Pagent and if there is more than one pagent it is Pagents
Latches.
daddies.
Clouds
circus's
slides
axes
That is the correct spelling "princesses" for more than one princess.
Trophies
spell it out - there is more than one ADEA
I think perhaps you are trying to spell countries, as in more than one country.
One activist. Several activists.
More than one blog=blogs.