The plural of princess is princesses - just add "es." It's the same for prince: the plural is princes.
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
Yes you can have more than 1 prince in a family.
Latches.
daddies.
Clouds
circus's
slides
axes
That is the correct spelling "princesses" for more than one princess.
I think perhaps you are trying to spell countries, as in more than one country.
Trophies
spell it out - there is more than one ADEA
One activist. Several activists.