The cat was known to be immortal because it survived 8 car crashes in its life.
:)
The vampire claimed to be immortal, having lived for centuries without aging a day.
For centuries people have feared the Olympians, immortal gods.
Ghosts are a good example of being immortal.
Like this: You are a mortal, you can die. I, however, am immortal, in other words, I cannot die.
I am not writing a sentence using that word.
I can give you a sentence using the word galaxy.
a sentence using the word endotracheal
This is a sentence using the word aviator.
I like turtles because they can fly like immortals.
I am saying a sentence using the word collagen.
This is a sentence using the word monomer. :P
this is a sentence using the word armchair.