Confusing then vs than is one of the most common grammar mistakes in English. The two words sound similar, but they have completely different meanings.
Getting this right matters. Whether you’re writing an email, an essay, educational material, or a manuscript, using the correct word keeps your writing precise and professional.
Let’s break it down clearly.
Then vs Than: What’s the Difference?
The difference between then vs than comes down to time versus comparison.
- Then relates to time.
- Than is used to compare things.
That’s it.
But since English likes to keep things interesting (read: mildly annoying), let’s look at each word properly.
When to Use “Then”
“Then” has to do with time.
If you’re describing events in order, you’ll use then.
Example sentence:
We watched the lions, then we went to see the zebras, then we visited the reptile exhibit, and then we admired the elephants.
In this sentence, then shows what happened next. It’s a timeline word.
You’ll also use then in an if–then construction.
Example:
If we want to stop the alien invasion, then we need laser guns.
(Practical life advice.)
If your sentence is about:
- something happening
- something happening next
- or an if–then situation
… you want then.
If it isn’t about time, you may need to double-check your grammar.
When to Use “Than”
“Than” is for comparison.
If you are comparing two things in a sentence, you need than.
Examples:
- Mark is taller than Daniel.
- This exam was harder than last year’s.
- I would rather edit a 300-page maths textbook than assemble flat-pack furniture.
Every example compares one thing with another.
You’ll commonly see than with words like:
- taller than
- shorter than
- better than
- less than
- more than
- stronger than
If your sentence is comparing, use than.
A Simple Way to Remember Then vs Than
Here’s a practical tip.
Then = Time
Both words have an “e”.
Than = Comparison
Both words have an “a”.
It’s not revolutionary. But it works.
If you’re still unsure, read your sentence out loud. Ask yourself:
- Am I describing when something happens?
- Or am I comparing two things?
Your ear will often catch what your eye misses.
Why Writers Confuse Then and Than
The reason writers confuse then vs than is simple: they sound similar.
In spoken English, the vowel sound is subtle. In fast conversation, they can blur together. But in written language, the difference matters.
Using the wrong word can make a sentence look careless – even if the rest of the writing is strong.
And if you’re submitting work for publication, assessment, or professional review, small grammar errors can distract from your message.
Then vs Than: Final Check Before You Write
Before you publish or submit your work, check:
- Is this sentence about time? → then
- Is this sentence making a comparison? → than
If you’re unsure, slow down and examine the structure of the sentence.
Good grammar isn’t about sounding fancy. It’s about clarity.
And clarity always wins.
Need a Second Pair of Eyes?
Even experienced writers mix up small but stubborn grammar issues like then vs than. A professional editor can help ensure every word in your document is correct, consistent and clear.
If you’re looking for a meticulous, accredited editor in Melbourne who specialises in science, maths and educational publishing, I’m always happy to help.
