in on
idiom
: knowledgeable about (something) or involved in (something)
They were all in on the scheme.
I let them in on our little secret.
Examples of in on in a Sentence
Recent Examples on the Web
When her studio head boss asks her to fire her head writer Ava Daniels (Hannah Einbinder) to appease a toxic male movie star, Vance decides to walk away, and does it in on air.
—
Megan Thomas, CNN Money, 19 Sep. 2025
Lyles even joined in on the fun with his clear polish, showing that glossy nails are not just for the women.
—Larry Stansbury, Essence, 19 Sep. 2025
And Levy had no idea that Prince William would join in on his tour of Windsor Castle.
—Ralphie Aversa, USA Today, 19 Sep. 2025
Bluemercury was gracious enough to clue our editors in on what its hottest products of the season are, so that you can be better informed when filling your cart with moisturizers, shampoos, serums, hair styling tools, eyeliners, and all sorts of other beauty essentials.
—Stacia Datskovska, Footwear News, 18 Sep. 2025
See All Example Sentences for in on
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Megan Thomas, CNN Money, 19 Sep. 2025
Lyles even joined in on the fun with his clear polish, showing that glossy nails are not just for the women.
—Larry Stansbury, Essence, 19 Sep. 2025
And Levy had no idea that Prince William would join in on his tour of Windsor Castle.
—Ralphie Aversa, USA Today, 19 Sep. 2025
Bluemercury was gracious enough to clue our editors in on what its hottest products of the season are, so that you can be better informed when filling your cart with moisturizers, shampoos, serums, hair styling tools, eyeliners, and all sorts of other beauty essentials.
—Stacia Datskovska, Footwear News, 18 Sep. 2025
See All Example Sentences for in on
Cite this Entry
“In on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20on. Accessed 24 Sep. 2025.
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