Compared to the old CRT monitors, these new ones are based on liquid crystal display technology, and therefore, they're much slimmer.

Mary is slimmer than me.

Baya wanted to make her face look slimmer.

Beth is slimmer than her sister now.

Out of concern I've lost 6 kilograms. Though it's beginning to come back." "You certainly look a lot slimmer than when I saw you last."