1
: any of several grasses (genus Poa) of which some have bluish-green culms
especially : kentucky bluegrass
2
[from the Blue Grass Boys, performing group, from Bluegrass state, nickname of Kentucky] : country music characterized by the use of unamplified stringed instruments (such as banjo, fiddle, guitar, and mandolin), by free improvisation, and by close usually high-pitched harmony

Examples of bluegrass 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.
Five-piece bluegrass and jam band combines banjo, mandolin and dobro with improvisation and rock ‘n’ roll attitude. Patrick Connolly, The Orlando Sentinel, 31 Aug. 2026 The Welk Music Group had acquired Sugar Hill Records, and the label’s head asked fans who should record a bluegrass album — someone who had never done one before. Martha Ackmann, Vulture, 27 Aug. 2026 My father was a coal miner and a talented musician who would later perform in several local bluegrass bands. Michael Collins, USA Today, 26 Aug. 2026 Deep within the backwoods of rural Oklahoma, charismatic and musically gifted Amziah King herds a bluegrass-playing band of misfits while overseeing the premier honey-making operation in town. Jill Goldsmith, Deadline, 14 Aug. 2026 See All Example Sentences for bluegrass

Word History

First Known Use

1751, in the meaning defined at sense 1

Time Traveler
The first known use of bluegrass was in 1751

Browse Nearby Words

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Cite this Entry

“Bluegrass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bluegrass. Accessed 4 Sep. 2026.

Kids Definition

bluegrass

noun
1
: any of several grasses with usually bluish green stems
especially : Kentucky bluegrass
2
: country music played on a small group of instruments (as banjo, fiddle, and mandolin) with melody or harmony often made up by players during a performance

Geographical Definition

Bluegrass

geographical name

region of central Kentucky where Kentucky bluegrass abounds that is noted for the breeding of fine horses

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