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Definition of decade

decade

/ˈdɛk.eɪd/
dec · ade
Plural:decades
•
Adjective:decadal
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decade Lexical Profile

decade Game Scores & Validity

• noun

1

A period of ten years, either any continuous ten-year span or a specific calendar period beginning with a year ending in zero (such as the 1990s).

Example

"The city underwent rapid economic transformation over the past decade."

2

A set, series, or group of ten things; specifically, each of the five divisions of ten beads in a Catholic rosary.

Example

"She quietly recited a decade of the rosary before leaving the chapel."

Synonyms
View all synonyms for decade

• Nearby Words

debut
debutant
debutante
decade
decadelong
decadence
decadent

Word Origin & Etymology

Borrowed in the late 15th century from Middle French décade, via Late Latin decas ('set of ten'), from Ancient Greek dekas ('a group of ten'), derived from deka ('ten').

Cite this Entry

Wordmom. (2026). Definition of Decade. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/decade
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