Tomorrow or Tommorow: Which Spelling Is Correct?

If you are unsure about tomorrow or tommorow, the correct spelling is tomorrow. Tommorow is a common spelling mistake and is not accepted as the standard spelling in English.

The word tomorrow refers to the day after today and is one of the most common time expressions in everyday English. People often write tommorow because the repeated m sound makes it easy to add an extra m.

In this guide, you will learn the correct spelling, word origin, pronunciation, British and American usage, common errors, practical examples, and an easy memory trick. You will also learn how to use tomorrow correctly in formal and informal writing.

Table of Contents

Quick Answer

The correct spelling is tomorrow.

✅ tomorrow — correct
❌ tommorow — incorrect

Tomorrow means the day after today.

For example:

I will call you tomorrow.

We have a meeting tomorrow.

She is leaving tomorrow morning.

The incorrect form tommorow contains an extra m.

The correct spelling is:

T-O-M-O-R-R-O-W

Notice that there is one m and two r’s.

What Does Tomorrow Mean?

Tomorrow is an adverb of time. It refers to the day that follows today.

If today is Monday, then tomorrow is Tuesday.

For example:

Today is Monday. Tomorrow is Tuesday.

The word can also be used in several common time expressions:

tomorrow morning
tomorrow afternoon
tomorrow evening
tomorrow night
by tomorrow
until tomorrow
see you tomorrow

It is closely related to other time words such as today and yesterday.

Understanding this meaning helps English learners use the word naturally in sentences.

The Origin of Tomorrow

The modern word tomorrow developed from an older English expression meaning “on or during the next day.”

It is historically related to Old English tō morgenne, which literally referred to the coming morning or the next day. Over time, the expression changed in pronunciation and spelling and eventually became the single word tomorrow.

This is one reason modern English spelling can sometimes look different from the words that originally formed it.

The spelling tommorow did not develop as a separate English variant. It is simply a misspelling of tomorrow.

The historical connection also explains why the word contains the sequence:

to + morrow

Modern speakers generally learn tomorrow as one word.

British English vs American English Spelling

Unlike some English words that have different regional spellings, tomorrow is spelled the same way in British and American English.

English Variety	Correct Form	Incorrect Form
British English	tomorrow	tommorow
American English	tomorrow	tommorow
Canadian English	tomorrow	tommorow
Australian English	tomorrow	tommorow
International English	tomorrow	tommorow

So whether you are writing for a US audience, UK audience, Commonwealth readers, or an international audience, use tomorrow.

For example:

British English:

I will see you tomorrow.

American English:

I will see you tomorrow.

The spelling remains exactly the same.

How Is Tomorrow Pronounced?

The pronunciation varies slightly between English accents.

In British English, it is commonly represented as:

/təˈmɒrəʊ/

In American English, it is commonly represented as:

/təˈmɑːroʊ/

A simple pronunciation guide is:

tuh-MOR-oh

The main stress falls on the middle syllable.

The word has three syllables:

to-mor-row

The spoken form can contribute to spelling mistakes because the sound does not clearly show how many letters should appear in the written word.

In particular, the repeated m sound may encourage learners to write two m’s:

❌ tommorow

But the correct spelling has only one:

✅ tomorrow

Why Do People Confuse Tomorrow and Tommorow?

The main problem is the repeated sounds in the middle of the word.

The correct spelling is:

to-morrow

But when people say the word quickly, the sound can make the spelling feel like it contains another m.

There are also several reasons for the mistake:

The word is commonly used in fast writing.
The pronunciation does not clearly reveal every letter.
The m and r sounds occur close together.
People may remember the word incorrectly from childhood.
Fast typing can cause letters to be doubled accidentally.

The biggest spelling trap is adding an extra m.

Remember:

tomorrow = one m + two r’s

Not:

tommorow = two m’s + one r

Which Spelling Should You Use?

Use tomorrow in all forms of standard English.

It is correct for:

American English
British English
Canadian English
Australian English
Commonwealth English
International English

You should use it in both casual and professional settings.

Everyday writing

I’ll see you tomorrow.

Professional email

We can discuss the matter tomorrow.

Academic writing

The experiment will continue tomorrow.

Business communication

The meeting has been moved to tomorrow.

There is no regional version that uses tommorow.

Common Mistakes with Tomorrow

Here are some frequent spelling errors:

Incorrect	Correct
tommorow	tomorrow
tomorow	tomorrow
tommorrow	tomorrow
tomarrow	tomorrow
tommoroww	tomorrow
tomorroe	tomorrow

The most common error is tommorow because writers add an extra m.

Incorrect

I will finish it tommorow.

Correct

I will finish it tomorrow.

Incorrect

See you tommorow morning.

Correct

See you tomorrow morning.

Incorrect

The deadline is tommorow.

Correct

The deadline is tomorrow.

Proofreading is especially important when using the word in emails, assignments, applications, and other professional writing.

Tomorrow in Everyday Examples

Tomorrow is extremely common in everyday English.

In Emails

I will send the documents tomorrow.

Can we discuss this tomorrow morning?

In News Writing

Officials will announce the decision tomorrow.

On Social Media

New video coming tomorrow!

See you tomorrow!

In Formal Writing

The committee will meet tomorrow to review the proposal.

In Conversation

What are you doing tomorrow?

I am going to visit my family tomorrow.

Common Time Expressions

Tomorrow morning

I have an appointment tomorrow morning.

Tomorrow afternoon

The class starts tomorrow afternoon.

Tomorrow evening

We are having dinner tomorrow evening.

Tomorrow night

I will call you tomorrow night.

By tomorrow

Please send the report by tomorrow.

Until tomorrow

We will wait until tomorrow.

These expressions make tomorrow an important part of everyday vocabulary and time reference.

Easy Trick to Remember Tomorrow

Here is a simple memory trick:

One M, Two R’s

Remember:

Tomorrow has one M and two R’s.

Correct:

T-O-M-O-R-R-O-W

Break it down:

TO + M + ORROW

Another helpful trick is:

One M, two R’s = tomorrow.

When you write tommorow, check the middle:

❌ TOMMOROW
Two M’s, one R

✅ TOMORROW
One M, two R’s

This simple pattern is useful for students, English learners, and anyone who frequently makes spelling mistakes.

Tomorrow or Tommorow – Usage & Search Interest

Tomorrow is a very common English time word. It appears in everyday conversations, calendars, schedules, emails, news reports, social media posts, and professional communication.

People who search tomorrow or tommorow are usually trying to confirm the correct spelling rather than compare two different words.

The incorrect spelling tommorow often appears because users add an extra m. This makes spelling questions around the word useful for English learners and students.

Google search interest can change by country and over time, so exact trend numbers should not be treated as permanent. However, the standard usage is clear across major English varieties:

tomorrow = correct

tommorow = misspelling

Comparison Table

Word or Expression	Correct?	Meaning / Use
tomorrow	✅	The day after today
tommorow	❌	Common misspelling
today	✅	The current day
yesterday	✅	The day before today
tomorrow morning	✅	Morning of the next day
tomorrow afternoon	✅	Afternoon of the next day
tomorrow evening	✅	Evening of the next day
tomorrow night	✅	Night of the next day
by tomorrow	✅	No later than the next day
until tomorrow	✅	Continuing up to the next day

FAQs

Is it tomorrow or tommorow?

Tomorrow is the correct spelling. Tommorow is incorrect.

How do you spell tomorrow?

The correct spelling is:

T-O-M-O-R-R-O-W

It has one M and two R’s.

What does tomorrow mean?

Tomorrow means the day after today.

Is tomorrow an adverb?

Yes. Tomorrow commonly functions as an adverb of time.

Example:

We will leave tomorrow.

Is tomorrow spelled differently in British and American English?

No. Both British and American English use tomorrow.

Why do people spell tomorrow as tommorow?

People often add an extra m because of the way the word sounds when spoken quickly.

What is the easiest way to remember tomorrow?

Remember:

One M, two R’s.

That gives you:

TO-M-ORR-OW

Can I say tomorrow morning?

Yes. Tomorrow morning is a very common time expression.

Example:

I will call you tomorrow morning.

Conclusion

When choosing between tomorrow or tommorow, always use tomorrow. The spelling tommorow is incorrect and contains an extra m. The word refers to the day after today and commonly functions as an adverb of time.

It is spelled the same way in British, American, Canadian, Australian, and international English.

The easiest way to remember it is “one M, two R’s.” Use tomorrow in everyday conversation, emails, academic writing, professional communication, news writing, and social media. Once you remember its letter pattern, this common spelling mistake becomes easy to avoid.