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Okay? Okay?
Bizarre origins of the world's most recognized word.

What 'Ironic' Really Means What "Ironic" Really Means
"Rain on your wedding day" and other disputed usages.

'Mispronunciations' That May Be Fine "Mispronunciations" That May Be Fine
"Mischievous," "nuclear," and other words to pronounce with caution.

The Awkward Case of 'His or Her' The Awkward Case of "His or Her"
Despite what the grammar police might say, it's actually fine to use "their" as a singular pronoun.

How a Word Gets into the Dictionary How a Word Gets into the Dictionary
What our editors are looking for when they choose words for Merriam-Webster's.

New Dictionary Words for 2011 New Dictionary Words for 2011
"Cougar," "Crowdsourcing," "Bromance" and more - the latest additions to America's best-selling dictionary.

Drive Safe: In Praise of Flat Adverbs Drive Safe: In Praise of Flat Adverbs
You don't have to end all your adverbs in -ly to talk right.

A vs. An A vs. An
When to use one or the other, and "an" historical exception or two.

Soop vs. Soup Soop vs. Soup
Noah Webster: the man who changed the way we spell... up to a point.

Ghost Word Ghost Word
The story of an imaginary word that managed to sneak past our editors and enter the dictionary.

Hopefully Hopefully
Contrary to what your teachers may have said, we believe the popular usage of this word is correct. Hopefully you agree.

Ending a Sentence with a Preposition Ending a Sentence with a Preposition
An old-fashioned rule we can no longer put up with.

Who vs. Whom Who vs. Whom
Good news for those who feel stuffy saying "whom."

Gridiron Gridiron
From torture to tailgating—the origins of an American football term.

Christmas vs. Xmas Christmas vs. Xmas
The surprising history behind this controversial abbreviation.

Rhyming Slang Rhyming Slang
"Put up your dukes," "86'd," and other examples of rhyming slang.

Frequently Looked Up Words Frequently Looked Up Words
An insight into the words often topping the list.

Gourmet Gourmet
Labels for foodies: the difference between "gourmet," "gourmand," and "epicure."

Stinkeye Stinkeye
Beyond a dirty look: the meaning and origins of this evocative term.

Open Dictionary Open Dictionary
What makes a good submission to the Open Dictionary, our collection of New Words & Slang?

Than & Then Than & Then
When to use "than" and when to use "then," and when those rules get tricky.

Octopus Octopus
What's the correct plural of "octopus": "octopuses" or "octopi"? Yes – and then some.

Penultimate Penultimate
What's the difference in meaning between "ultimate" and "penultimate"?

Fewer and Less Fewer and Less
The rule is that "fewer" refers to number among things you can count – except, that is, when "less" does.

Posh Posh
Dispelling some common misconceptions about the origin of "posh."

Doozy Doozy
Does the word "doozy" really come from the Duesenberg Motor Company's famous cars?

Rein vs. Reign Rein vs. Reign
Do you "reign something in," or "rein something in"?

Hat Trick Hat Trick
The origins of "hat trick" – where hockey and haberdashery collide.

Ratiocinate Ratiocinate
There's something suspicious about Sherlock Holmes and the use of "ratiocinate."

Copper Cop
Just how – and why, where, and when – did police officers come to be called "cops"?

Slang Slang
Does slang belong in the dictionary? Yup. Here's why.

Classic Roots Classic Roots
English is a Germanic language. So where did all that Latin come from?

I Before E I Before E
A familiar spelling "rule" and its many exceptions.

Michael Jackson Michael Jackson
Michael Jackson's death sent many people to the dictionary. What did they look up?

Affect vs. Effect Affect vs. Effect
Here's the lowdown on what may be the most confusing pair of words in the English language.