adjective (1)
\ˌȯl-ˈin \

Definition of all-in 

(Entry 1 of 2)

1 chiefly British : all-inclusive

2 chiefly British : being almost without restrictions all-in wrestling

all in

adjective (2)
variants: or less commonly all-in \ˌȯl-​ˈin \

Definition of all in (Entry 2 of 2)

1 : tired, exhausted Atticus said as tactfully as he could that he just didn't think he could stand a pageant tonight, he was all in.— Harper Lee Inside, the invalid had gone to bed; her mother said, "She was all in," and expressed pity for her, for the first time.— Edna O'Brien

2 : fully committed to or involved in something The Diamondbacks are all-in for this year. It's why they brought in J. D. Martinez at the trade deadline. They have a healthy mix of young and veteran players, and they're looking to make a run this October.— Kevin Skiver often used in the phrase go all in With my bonus in tow, I got the far-fetched idea I didn't feel like working that type of pace anymore. So I went all in on real estate on my own.— Philip Michael

Note: In poker, to go all in is to bet everything on a hand.

The best my opponent could have at this point was a 5-high straight, so I went all in—my full $220,000 was riding on this hand. The last card was a Jack—and I was out.— John Rochowski

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Examples of all-in in a Sentence

Adjective (2)

was all in after an evening of dancing and partying

Recent Examples on the Web: Adjective

The deals are all in store only, from Friday through Sunday, November 25th. Jacob Kastrenakes, The Verge, "The best Black Friday 2018 phone deals at Best Buy, Walmart, and more," 21 Nov. 2018 But the unspoken subtext raises a shadowy question: If Dunham was a man, if her health issue wasn’t a women’s health issue, would anyone ask if her illness was all in her head? Calin Van Paris, Vogue, "Lena Dunham Gets Real About Her Latest Surgery—And the Gender Bias Around Women’s Health Issues," 17 Oct. 2018 However, the Frank family’s escape efforts were all in vain. Washington Post, "Anne Frank’s family tried to escape to US, hit roadblocks," 6 July 2018 Little Tsarevich Alexei wears a sailor suit, his sisters are all in White. Caroline Hallemann, Town & Country, "What's the Story With The Romanoffs Controversial Opening Credits?," 27 Oct. 2018 The Sprouse brothers’s teasing is all in good fun, obviously. Kara Nesvig, Teen Vogue, "Cole Sprouse Trolled Dylan Sprouse by Retweeting a Comparison to Ellen DeGeneres," 15 Oct. 2018 Given the reactions from #AGT Twitter, viewers at home loved the whole thing too: While her routine was all in good PG fun, the judges made some rather scandalous comments at the end that quickly made things turn PG-13. Kayla Keegan, Good Housekeeping, "'America's Got Talent' Star Vicki Barbolak Stripped Down to Her Swimsuit for Last Night's Finale," 19 Sep. 2018 SpaceX, Blue Origin, Virgin Orbit, United Launch Alliance, and Northrop Grumman are all in the commercial space business. Kyle Mizokami, Popular Mechanics, "Does Stratolaunch Have a Top Secret Purpose?," 22 Aug. 2018 Cole seems to suggest that Sprousehart is all in fans' heads in an interview with Entertainment Weekly. Noelle Devoe, Seventeen, "A Complete Timeline of Cole Sprouse and Lili Reinhart's Relationship," 30 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'all-in.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of all-in

Adjective (1)

1890, in the meaning defined at sense 1

Adjective (2)

1901, in the meaning defined at sense 1

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Time Traveler for all-in

The first known use of all-in was in 1890

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English Language Learners Definition of all-in

: very tired

: allowing almost any technique or method

More from Merriam-Webster on all-in

Rhyming Dictionary: Words that rhyme with all-in

Thesaurus: All synonyms and antonyms for all-in

Comments on all-in

What made you want to look up all-in? Please tell us where you read or heard it (including the quote, if possible).


a knickknack or trinket

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