eighth

noun

ˈātth 

ˈāth

plural eighths ˈāt(th)s 

ˈāths

1

: one that is number eight in a series

the eighth of the month

see Table of Numbers

2

: one of eight equal parts of something

one eighth of a pie

an eighth of a pound

3

: eighth note

4

: octave

He contrasted himself with Elton John, who complained that his chubby hands could only reach an eighth, which was a hindrance to his piano technique (though clearly he overcame the problem).

—Susan Wyndham

eighth adjective or adverb

the eighth person in line

the country's eighth largest city

Examples of eighth in a Sentence

one eighth of the pie

An eighth of a pound is two ounces.

Recent Examples on the Web

The proposal would increase the county’s sales tax by three-eighths of a cent to fund wildfire prevention, fire protection and healthcare access, with 50% of net revenues slated for local hospitals. — Corey Schmidt, Sacbee.com, 18 July 2026

Ward added his first home run at Camden Yards this season in the sixth inning before Henderson capped the scoring with his first long ball since June 19 on the first pitch of his at bat in the eighth. — ABC News, 11 July 2026

In his newest proposal, Chastain calls for extending the city’s three-eighths-cent bus sales tax and enacting a new 40-year quarter-cent sales tax for capital improvement. — Dylan Lysen july 6, Kansas City Star, 6 July 2026

Freddie Freeman provided the others with a solo home run in the sixth and an RBI single off Mason Miller in the eighth. — Bill Plunkett, Oc Register, 5 July 2026

Word History

First Known Use

1557, in the meaning defined at sense 2

Phrases Containing eighth

• eighth note
• eighth rest

Kids Definition

eighth

noun

ˈātth 

plural eighths ˈāt(th)s 

: one that is number eight in a series see number

eighth adjective or adverb