in theory
idiom
1
—used to say what should happen or be true if a theory is correct
In theory, the reading skills of the students should improve.
2
—used to say that something seems to be true or possible as an idea but may not actually be true or possible
I agree with you in theory, but realistically I don't think we have the time to do that.
Examples of in theory in a Sentence
Recent Examples on the Web
The game plan against Ohtani is simple in theory, yet difficult to execute.
—
Fabian Ardaya, New York Times, 1 Oct. 2025
Turnovers are a top priority for the Patriots in theory, with ball security and ball disruption listed as the second item on a sign in their team meeting room that outlines the identity Vrabel wants from his team.
—Andrew Callahan, Boston Herald, 26 Sep. 2025
Multivitamins could, in theory, help with both issues.
—Matt Fuchs, Time, 24 Sep. 2025
Leucovorin can help folate reach the brain, which in theory might improve verbal communication or reduce autism symptoms like irritability or repetitive behaviors.
—Aria Bendix, NBC news, 23 Sep. 2025
See All Example Sentences for in theory
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Fabian Ardaya, New York Times, 1 Oct. 2025
Turnovers are a top priority for the Patriots in theory, with ball security and ball disruption listed as the second item on a sign in their team meeting room that outlines the identity Vrabel wants from his team.
—Andrew Callahan, Boston Herald, 26 Sep. 2025
Multivitamins could, in theory, help with both issues.
—Matt Fuchs, Time, 24 Sep. 2025
Leucovorin can help folate reach the brain, which in theory might improve verbal communication or reduce autism symptoms like irritability or repetitive behaviors.
—Aria Bendix, NBC news, 23 Sep. 2025
See All Example Sentences for in theory
Cite this Entry
“In theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20theory. Accessed 4 Oct. 2025.
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