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Use "slimness" in a sentence
"In America this ideal of masculine slimness is explained by our fondness for thinking of our men as lean wrestlers with frontier conditions, for the fact of a frontier is still a pleasant figment of our fancy."
"It might with truth be described as a "slim volume," but its slimness is more than counteracted by its superficial size, which is foolscap."
"Unsurprisingly, from the moment you take it out of its box the slimness is the most eye-catching feature about the V2220."