How to use "thinner" in a sentence

He looked paler and thinner than she remembered

But in front of me the fog seems to be thinner, and I begin to slow

The other detective, West, is younger and thinner but with an empty look in his eye.

Its air is much thinner than ours, its oceans have become smaller until they cover only a third of its surface, and from its far north and south the ice is steadily moving forwards

You're thinner

Marian, she looks like a paler, thinner version of myself! She says that she's dying