[ bloo-gras, -grahs ]

  1. any grass of the genus Poa, as the Kentucky bluegrass, P. pratensis, having dense tufts of bluish-green blades and creeping rhizomes.

  2. country music that is polyphonic in character and is played on unamplified stringed instruments, with emphasis especially on the solo banjo.

  1. the Bluegrass. Bluegrass Region.

Origin of bluegrass

An Americanism dating back to 1745–55; blue + grass

Words Nearby bluegrass Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use bluegrass in a sentence

British Dictionary definitions for bluegrass


/ (ˈbluːˌɡrɑːs) /

  1. any of several North American bluish-green grasses of the genus Poa, esp P. pratensis (Kentucky bluegrass), grown for forage

  2. a type of folk music originating in Kentucky, characterized by a simple harmonized accompaniment

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for bluegrass


A kind of folk music for guitar, banjo, violin, other stringed instruments, and voice; bluegrass is distinguished by rapid notes and improvisation by the musicians.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.