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
The Piedmont Police Department was the first law enforcement agency in the country to launch an automatic license plate reader transparency portal in partnership with Flock Safety in 2021.
—
Hema Sivanandam, Mercury News, 16 Apr. 2026
Australia passed a world-first law banning children under 16 from accessing social media in December, and a handful of other countries, including in Europe, want to follow suit.
—Clare Duffy, CNN Money, 15 Apr. 2026
Global online forum Reddit on Friday filed a court challenge to Australia’s world-first law that bans Australian children younger than 16 from holding accounts on the world’s most popular social media platforms.
—ABC News, 31 Mar. 2026
Utah enacted the first law, last May, supporting plug-in solar, and now some 30 pieces of similar legislation have been introduced around the United States.
—Jeff Brady, NPR, 12 Mar. 2026
See All Example Sentences for first law
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Hema Sivanandam, Mercury News, 16 Apr. 2026
Australia passed a world-first law banning children under 16 from accessing social media in December, and a handful of other countries, including in Europe, want to follow suit.
—Clare Duffy, CNN Money, 15 Apr. 2026
Global online forum Reddit on Friday filed a court challenge to Australia’s world-first law that bans Australian children younger than 16 from holding accounts on the world’s most popular social media platforms.
—ABC News, 31 Mar. 2026
Utah enacted the first law, last May, supporting plug-in solar, and now some 30 pieces of similar legislation have been introduced around the United States.
—Jeff Brady, NPR, 12 Mar. 2026
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 19 Apr. 2026.
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