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  1. a member of an international association of professional or executive businesswomen (Soroptimist Club), devoted primarily to welfare work.

Origin of soroptimist

1920–25; < Latin sor(or) sister + optimist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for soroptimist


  1. a member of an organization of clubs (Soroptimist International) for professional and executive businesswomen

Word Origin

C20: from Latin soror sister + optimist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for soroptimist


international society of business women and women executives, first club formed 1921 in Oakland, Calif., U.S., from sorority + optimist, probably after the Optimist Club.

Online Etymology Dictionary, © 2010 Douglas Harper