Luc·ca (lo?o?k?) A city of northwest Italy west of Florence. On the site of an ancient Ligurian settlement and a Roman colony, it received its city charter in the 1100s and was later an independent republic.American 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.Lucca (Italian ?lukka) n (Placename) a city in NW Italy, in Tuscany: centre of a rich agricultural region, noted for the production of olive oil. Pop: 81 862 (2001). Ancient name: Luca Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Luc?ca (?lu k?, -k?) n. a city in NW Italy, W of Florence. 91,656. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.