Svabbr. sievertSVabbr. Sports saveAmerican Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.sv abbreviation for 1. (Nautical Terms) sailing vessel 2. (Automotive Engineering) side valve 3. sub verbo or voce [(sense 3) Latin: under the word or voice]sv the internet domain name for (Computer Science) El Salvador SV abbreviation for 1. (Roman Catholic Church) Sancta Virgo 2. (Roman Catholic Church) Sanctitas Vestra [(sense 1) Latin: Holy Virgin] [(sense 2) Latin: Your Holiness]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014s.v. under the word (used as a direction to a reference). [