decennium

noun
de·​cen·​ni·​um | \ di-ˈse-nē-əm How to pronounce decennium (audio) \
plural decenniums or decennia\ di-​ˈse-​nē-​ə How to pronounce decennia (audio) \

Definition of decennium

: a period of 10 years : decade

Examples of decennium in a Sentence

Recent Examples on the Web

According to design firm Bagaar's blog: Over the past decennium, users have grown accustomed to certain design patterns: positions, colors, icons... Samuel Axon, Ars Technica, "Behold, the most (intentionally) poorly designed website ever created," 4 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'decennium.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of decennium

1685, in the meaning defined above

History and Etymology for decennium

Latin, from decem + annus year — more at annual

Keep scrolling for more

Learn More about decennium

Dictionary Entries near decennium

decennary

decenniad

decennial

decennium

decent

decenter

decentness

Statistics for decennium

Look-up Popularity

Time Traveler for decennium

The first known use of decennium was in 1685

See more words from the same year

More from Merriam-Webster on decennium

Rhyming Dictionary: Words that rhyme with decennium

Comments on decennium

What made you want to look up decennium? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a topic to which one constantly reverts

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!