first law
noun
: the most important principle
He teaches his students that balance is the first law of architecture.
Examples of first law in a Sentence
Recent Examples on the Web
Passed in the Senate in June, this bill, if approved, would be among the first laws in the nation to regulate AI companions with safety standards.
—
Lia Russell, Sacbee.com, 29 Aug. 2025
The first law to get approved often serves as a template or model.
—Lance Eliot, Forbes.com, 20 Aug. 2025
In 2016, North Carolina passed the nation’s first law barring transgender people from using bathrooms aligned with their identities.
—Kevin Rector, Los Angeles Times, 26 June 2025
The nation’s first law school was established there, as was the first all-female academy.
—Marcia Desanctis, Travel + Leisure, 20 June 2025
See All Example Sentences for first law
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Lia Russell, Sacbee.com, 29 Aug. 2025
The first law to get approved often serves as a template or model.
—Lance Eliot, Forbes.com, 20 Aug. 2025
In 2016, North Carolina passed the nation’s first law barring transgender people from using bathrooms aligned with their identities.
—Kevin Rector, Los Angeles Times, 26 June 2025
The nation’s first law school was established there, as was the first all-female academy.
—Marcia Desanctis, Travel + Leisure, 20 June 2025
See All Example Sentences for first law
Cite this Entry
“First law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/first%20law. Accessed 9 Sep. 2025.
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