EI abbreviation for 1. (Placename) East Indian 2. (Placename) East Indies 3. (Psychology) social psychol emotional intelligence 4. (Social Welfare) (in Canada) Employment Insurance: a regular payment to a person who is out of work, funded by contributions from workers and employers Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014E.I. 1. East Indian. 2. East Indies. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.