Mendelsohn men·del·sohn US/ˈmɛndʌlsʌn/ uncommon noun 1. German architect who migrated to Palestine in 1937 (1887-1953) SynonymsErich Mendelsohn Related words Broader terms architect WordNet 2.1 (Princeton University). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.