tine (t?n)n.1. A branch of a deer’s antlers.2. A prong on an implement such as a fork or pitchfork.[Middle English, from Old English tind.]tined (t?nd) adj.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.