Heart
Keystone
Keystone noun - An immaterial thing upon which something else rests.
Usage example: a committed socialist who argues that greed is the keystone of capitalism
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Synonyms for Keystone
Heart and keystone are semantically related in foundation topic. Sometimes you can use "Heart" instead a noun "Keystone".
Mutual synonyms
How words are described
Both words in one sentence
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Keystone Army: Facing an enemy Keeper is like this: the moment its dungeon heart is destroyed, its forces go neutral and file out of the nearest portal en masse, leaving its dungeon to be claimed.
Source: Video Game / Dungeon Keeper - The lesson: the Can you Seal Evil In and the Cosmic Keystone that is the very heart of your power should be two different things.
Source: The Punishment -
Down in the heart of the island, Desmond tells him that he (Jack) should let him (Desmond) put the keystone back in, since he's the only one that can survive the EM radiation.
Source: Series / Lost
Cite this Source
Keystone and Heart. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/heart/keystone
Heart & Keystone. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/heart/keystone>.
Keystone or Heart. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/heart/keystone.
Google Ngram Viewer shows how "heart" and "keystone" have occurred on timeline