The word “keystone” has 2 syllables: key-stone.
It's pronounced as /ˈkiˌstoʊn/.
What is synonym and antonym for keystone?
In the thesaurus, “keystone” has 6 synonyms.
Here are synonyms for keystone along with examples of usage in sentences.
On this page you'll find 6 synonyms or another words to keystone, such as: base, basis, bedrock, cornerstone, foundation, fundament.
Make sure to choose synonyms and antonyms that are appropriate for the context of the sentence.