SOMBRERO
\səmbɹˈe͡əɹə͡ʊ], \səmbɹˈeəɹəʊ], \s_ə_m_b_ɹ_ˈeə_ɹ_əʊ]\
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1919
- The Winston Simplified Dictionary
By William Dodge Lewis, Edgar Arthur Singer
1919
- The Concise Standard Dictionary of the English Language
By James Champlin Fernald