SINCE 1828

An Encyclopædia Britannica Company

Pentagonese

play

noun Pen·ta·gon·ese \ˌpen-tə-ˌgä-ˈnēz, -ˈnēs\

Definition of Pentagonese

: military jargon

First Known Use of pentagonese

1950

Learn More about pentagonese

See words that rhyme with Pentagonese

Seen and Heard

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

show

WORD OF THE DAY

fester

play

to become worse as time passes

Words at Play

alt-597a00ef4b9d7

'Motif' vs 'Leitmotif'

A pattern emerges.

alt-5978b44edfb13

Our (Almost) Final Word on 'Penultimate'

The ultimate guide to using penultimate.

alt-5978cb55e8ba5

The Grammatical History of 'Awaken'/'Awoken'/'Awakened'

Or you can just go back to bed.

alt-59775cb5d7779

Words We're Watching: 'Aquafaba'

Don't dump out the bean water just yet...

Ask the Editors

video-title-words-of-the-year-1066

Words of the Year: 1066

Or, Why Pig Meat is Called 'Pork' and Cow Meat is Called 'Beef'

How Often Is 'Biweekly'?

Don't get us started on 'bimonthly'

video-irregardless-grammar-peeve-blend-of-the-synonyms-irrespective-and-regardless

Irregardless

It is in fact a real word (but that doesn't mean you should use it).

video-moose-goose-weird-plurals

Weird Plurals

One goose, two geese. One moose, two... moose. What's up with that?

Word Games

The Emoji Quiz

Think you’re an emoji 👓 expert? Let’s see 🤔

Take the quiz

A Game of Thrones Word Quiz

In the Game of Thrones quiz, you learn some new vocabulary. (It’s quite safe, really. You will not die.)

Take the quiz

Spell It

Can you spell these 10 commonly misspelled words?

Take the quiz

Word Winder's CrossWinder

Word Winder's CrossWinder

A game of winding words.

Play the game