Plural of unknown
regular plural
The plural of unknown is unknowns.
Forms of unknown
| Singular | unknown /ʌn(ˈn)əʊn/ |
|---|---|
| Plural | unknowns |
| Countable | countable |
Unknowns in a sentence
- We also know There are known unknowns.2003 [2002], Donald Rumsfeld, edited by Hart Seely, Pieces of Intelligence: The Existential Poetry of Donald H. Rumsfeld
- This is one of the biggest unknowns in these scenarios, and yet compliance can be the most crucial factor in determining whether an intervention works.2020 April 9, Ian Boyd, “We practised for a pandemic, but didn’t brace”, in Nature, volume 580, number 7802, page 9
- If an equation has three unknowns, you can plug in two of them to find the third.From the entry plug in
- You have to tell the knowns from the unknowns.From the entry known
- NASA officials often talk about the "unknown unknowns" – the unforeseen problems that catch them by surprise.2014 January 29, Kenneth Chang, “Beings not made for space: After years of missions, health problems of astronauts elude doctors”, in…. From the entry unknown unknown
Meaning of unknown
- adjective Not known; unidentified; not well known.
- noun A variable (usually x, y or z) whose value is to be found.
- noun Any thing, place, or situation about which nothing is known; an unknown fact or piece of information.
Questions about the plural of unknown
- What is the plural of unknown?
- The plural of unknown is unknowns.
- Is unknown countable?
- Unknown is a countable noun.
Source and license
Adapted from Wiktionary: unknown (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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