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

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Pilots from states without diplomatic relations with Israel, such as Oman, are in theory prohibited from landing in Israel. — The Week Uk, TheWeek, 10 Oct. 2026 He's dropped 84 points behind Antonelli, who could in theory win the title at the United States Grand Prix later this month, if other results go his way. — ABC News, 9 Oct. 2026 Others do not, such as the TV show conceit, which, though provocative in theory, will come across to many readers as functionally cosmetic. — Literary Hub, 8 Oct. 2026 Real Transformation Requires Difficult Decisions Institutional transformation is often discussed in theory. — Irma Becerra, Forbes.com, 6 Oct. 2026 See All Example Sentences for in theory

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“In theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20theory. Accessed 16 Oct. 2026.

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