Comparative form of classy: more classy(adjective)
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Use "classier" in a sentence
"Boarding from the back rows first - typical in classier airlines - is much less efficient."
"It is nice to be away from the inflated breasts that cantilever over serving trays in the so-called classier establishments."
"The minimalist UI recalls the classier breed of Twitter apps, like Tweetie, why the local and map views are a treat to see rendered natively, in the app and on a Google Map, respectively."