Breadcrumb Home > Thesaurus > H Synonyms of headstone Find synonyms for: Noun 1. keystone, key, headstone, building block usage: the central building block at the top of an arch or vault 2. gravestone, headstone, tombstone, stone, memorial, monument usage: a stone that is used to mark a grave WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of headstone (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: pinguid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language