in theory

phrase

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Tacky in theory, but designers are making versions that are chic in practice. — Minty Mellon, Vogue, 24 Aug. 2026 Scratch a gold chain, break a clasp, or lose the other half of an earring and, at least in theory, the material itself hasn’t lost its worth. — Tiana Randall, Forbes.com, 22 Aug. 2026 And in theory, this might be easier for, say, a former TV star with a lot of social-media followers and a group of socialite friends to do than for an average person. — Michael Waters, The Atlantic, 22 Aug. 2026 However, Lai explained that the launcher could, in theory, deliver explosive payloads designed to detonate near a target. — Christopher McFadden, Interesting Engineering, 21 Aug. 2026 See All Example Sentences for in theory

Rhymes for in theory

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Browse Nearby Words

in the original
in theory
in the pay of
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Cite this Entry

“In theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20theory. Accessed 1 Sep. 2026.

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