SINCE 1828

An Encyclopædia Britannica Company

certainly not

Definition of certainly not

: not at all “Did I offend you?” “Oh, certainly not.”

Word by Word Definitions

certainlyplay

: in a manner that is certain : with certainty
: it is certain that : assuredly

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Seen and Heard

What made you want to look up certainly not? Please tell us where you read or heard it (including the quote, if possible).

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WORD OF THE DAY

nobby

play

cleverly stylish

Words at Play

a-woman-waits-at-the-end-of-a-gloomy-pier-does-she-wait-for-charon-the-ferryman-to-the-underworld-it-is-dark-but-she-carries-a-parasol

Great Words for Twilight and Darkness

Words for the goth in all of us

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Helium: This Word Brought to You by a Solar Eclipse

And by the Sun, with some help from Greek.

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We're Down With You Being—or Your Being?—a Square

It's about (you? your?) having your say.

Devilish Words

Don't blame a word use error on the devil.

Ask the Editors

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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'

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Irregardless

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

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Weird Plurals

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

Word Games

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Time Traveler Quiz: Which Word Came First?

Which word entered the English language first?

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Name More Food!

Test your knowledge of food vocabulary!

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Spell It

Can you spell these 10 commonly misspelled words?

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Bee Cubed

Listen to the words and spell through all three levels.

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