A teepee has one room. Due to the size of most teepee's the size only accomodates enough room for one room.
Latches.
circus's
slides
daddies.
axes
Clouds
Oh, dude, it's like all of those spellings are technically correct! You can spell it as "tipi," "teepee," or "tepee." It's one of those words that just has multiple acceptable spellings, so pick your favorite and roll with it!
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