a·like (?-l?k?)adj. Having close resemblance; similar: The twins are as alike as two peas in a pod. Friends are generally alike in background and tastes.adv. In the same manner or to the same degree: They dress and walk alike.[Middle English alich (influenced by Old Norse ?l?kr), blend of ilich (from Old English gel?c) and anlich (from Old English onl?c); see l?k- in Indo-European roots.]a·like?ness n.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.alikeness (??la?kn?s) nthe state or quality of being similarCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014