plural bros
1
informal : brother
… Tommy has a worldview that's larger than his baby bro's.Leah Rozen
2
US slang
a
: a male friend
hanging out with his bros
One quirky edge the Olympics haven't yet sanded away is the habit of extreme athletes to stick together. Like, no matter where we're from, we're all bros. That kind of thing.Devin Gordon et al.
b
used as a friendly way of addressing a man or boy
Hey, bro, what's up?
Catch you later, bro.
c
: a young male who is part of a group of similar male friends stereotypically characterized as hearty, athletic, self-confident, party-loving, etc.
The recent season of "Project Greenlight," on HBO, made explicit how resistant to race talk Hollywood can be, a stifling culture of bros bonding with mirror versions of themselves.Emily Nussbaum
These were nerds who could pass for bros on a dorm-room sofa …Ben McGrath
often used before another noun
It's the continuation of the bro culture. In my experience, in this world right now, white guys have an advantage. In their training, they've been given access and tools that I haven't. White men get behind each other and empower themselves.Tanya Holland

Examples of bro in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The artificial intelligence boom led by American tech bros needed one instance of serious competition from China, namely DeepSeek, to shiver in fear and lose $94 billion of wealth in a single day. Mohammad Hosseini, Chicago Tribune, 5 Feb. 2025 What’s going to happen when two of the biggest stars in the world separately, and are even more famous as a couple, are together in a movie that’s certain to get the attention of film bros around the globe? Jason P. Frank, Vulture, 1 Feb. 2025 Then there’s the MAGA cult, whose bro culture Hegseth typifies: the big tattoos, womanizing and fervent Christian piety. Bret Stephens, The Mercury News, 24 Jan. 2025 Take the wealthy Ramaswamy’s unusually frank and frankly elitist assessment of non-tech bro culture. Sun Sentinel Editorial Board, Sun Sentinel, 3 Jan. 2025 See all Example Sentences for bro 

Word History

Etymology

by alteration

First Known Use

circa 1530, in the meaning defined at sense 1

Time Traveler
The first known use of bro was circa 1530

Dictionary Entries Near bro

Cite this Entry

“Bro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bro. Accessed 21 Feb. 2025.

Kids Definition

bro

noun
1
informal : brother sense 1
2
slang : brother sense 3
Last Updated: - Updated example sentences
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