Arthur Jacob Arshawsky art·hur·ja·cobarshawsky uncommon noun 1. United States clarinetist and leader of a swing band (born in 1910) SynonymsShawArtie ShawArthur Jacob Arshawsky Related words Broader terms clarinetistbandleader WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.