The plural of taco is tacos.
When something is plural, it means more than one.
An example sentence is: The seagulls swooped down and snatched our tacos.
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.
More than one blog=blogs.