Plural of keystone
regular plural
The plural of keystone is keystones.
Forms of keystone
| Singular | keystone /ˈkiː.stəʊn/ |
|---|---|
| Plural | keystones |
| Countable | countable |
Keystones in a sentence
- The tunnel, which is 1,000 yd. long, had been closed to passenger traffic since November 17, 1949, after some of the keystones had worked loose.1950 March, “Notes and News: Sugar Loaf Tunnel, Central Wales Line”, in Railway Magazine, page 209
- The facade was finished in polished marble and bronze set into limestone, completely plain except for softly, almost invisibly, deckled keystones.2008 February 10, Christopher Gray, “A Little Jewel Box of a Shoe Store”, in New York Times. From the entry deckled
Meaning of keystone
- noun The top stone of an arch.
- noun Something on which other things depend for support.
- noun A retail price that is double the cost price; a markup of 100%.
Questions about the plural of keystone
- What is the plural of keystone?
- The plural of keystone is keystones.
- Is keystone countable?
- Keystone is a countable noun.
Source and license
Adapted from Wiktionary: keystone (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.
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