eleventh chord

noun

: a ninth chord with the eleventh added : a chord that has an interval (see interval sense 2c) of an eleventh from its lowest to highest note when in root position

The high F makes the harmony on C into an eleventh chord.

Word History

First Known Use

1918, in the meaning defined above

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now