Anyday or Any Day: Which Spelling Is Correct?

🕓 Last updated on November 3, 2026

Have you ever stopped while writing and wondered whether to use anyday or any day? The two forms look almost the same, but only one is the standard spelling in everyday English. This small space can make a big difference in clear writing.

People often search for this phrase when writing emails, text messages, school assignments, or social media posts. They may also see expressions such as “any day now” or “I would choose this any day” and wonder whether the words should be joined.

The correct form is any day, written as two separate words. It can mean any particular day, no matter which one, or it can express a choice or preference. For example, “You can visit any day” means that you may visit on whichever day suits you.

In this guide, you will learn why any day is correct, where the phrase comes from, and how to use it in different sentences. You will also see common mistakes and learn whether British and American English use different spellings.

Anyday or Any Day Quick Answer

Any day is the correct standard spelling. Write it as two words.

The phrase can mean:

• Any particular day: You can call me any day.
• A day without a fixed date: The package may arrive any day now.
• A strong preference: I would choose tea over coffee any day.

What Does Any Day Mean?

Any day means one day, whichever day it may be. The exact date does not matter.

For example:

• We can meet any day this week.
• She may visit any day now.
• I would pick this book over the other one any day.

Is Anyday Ever Correct?

In standard English, anyday is not the accepted spelling of the ordinary phrase. It is usually treated as a spelling mistake.

You may see it in a company name, product name, username, or informal branding. However, these special uses do not make it the correct form in normal writing.

Quick rule: Always write any day as two words in standard sentences.

Oxford records the phrase any day in meanings such as “at all times” and “without exception.” Its learner dictionary also gives the expression any day now to mean “very soon.”

The Origin of Anyday or Any Day

The phrase any day comes from two old English words: any and day. Each word has its own history.

The Origin of Any

The word any comes from Old English ænig. It meant “anyone,” “one,” or “some.” It is related to older Germanic words with similar meanings.

Over time, any became a common word for referring to one or more things without naming a specific one.

The Origin of Day

The word day comes from Old English dæg. It has Germanic roots and is related to Dutch dag and German Tag. It refers to a period of time, especially the time when it is light outside or a full 24-hour period.

How Did Any Day Become a Phrase?

When people put any and day together, they created a phrase that refers to whichever day is suitable or possible.

The Oxford English Dictionary records the phrase any day (of the week) from 1759, with the sense of “at all times” or “without exception.” <Cite refs={[“turn484006search7”]}/>

Why Do People Write Anyday?

English has many compound words written as one word, such as anyone, anywhere, and anytime. This may lead people to think that anyday should also be one word.

However, common word patterns do not decide every spelling. The standard form remains any day, with a space.

British English vs American English Spelling

There is no spelling difference between British and American English for this phrase.

Both varieties use any day as two words. The spelling anyday is not the standard form in either variety.

British and American Spelling Table

Examples in American English

• You can visit us any day.
• The results may arrive any day now.
• I would choose this option any day.

Examples in British English

• You can visit us any day.
• The results may arrive any day now.
• I would choose this option any day.

As you can see, the spelling stays the same. You do not need to change any day when writing for readers in the United States or the United Kingdom.

Which Spelling Should You Use?

The answer is simple: use any day in standard writing, no matter where your readers live.

For American Readers

Write any day as two words in emails, schoolwork, articles, and business documents.

Example:

“You can send the report any day before Friday.”

For British Readers

Use the same spelling. British English does not require a different form.

Example:

“We can arrange the visit any day next week.”

For Australian and Commonwealth Readers

Use any day as two separate words. This form is clear and familiar to readers in Australia, Canada, New Zealand, and other English-speaking regions.

For Global Writing

If your content is for an international audience, choose any day. It is the standard form and is easy to understand.

Common Mistakes with Anyday or Any Day

Writers often make small spelling errors when using this phrase. Here are common mistakes and their correct forms.

1. Writing Anyday as One Word

Incorrect: You can call me anyday.

Correct: You can call me any day.

The standard phrase needs a space.

2. Using Any Day Now Incorrectly

Incorrect: The bus will arrive anyday now.

Correct: The bus will arrive any day now.

The phrase any day now means that something is expected very soon.

3. Confusing Any Day with Every Day

These phrases have different meanings.

• Any day: Whichever day is suitable.
• Every day: Each day.

Examples:

• You can visit any day.
• I read every day.

4. Thinking British English Uses Anyday

Incorrect: Anyday is the British spelling.

Correct: Both British and American English use any day.

5. Forgetting the Space in Formal Writing

Avoid writing anyday in reports, essays, applications, or professional emails. Use the standard two-word form.

6. Confusing Any Day with Anytime

Both phrases are correct, but they do not mean exactly the same thing.

• Any day: On whichever day.
• Anytime: At any time.

Examples:

• You can visit any day.
• You can call me anytime.

Anyday or Any Day in Everyday Examples

The phrase any day works in many types of writing. Here are simple examples for common situations.

In Emails

Use any day when discussing a meeting, deadline, or suitable date.

Examples:

• I am available any day next week.
• Please send the documents any day before Monday.
• We can arrange a call any day that suits you.

In News Writing

Writers use the phrase when the exact date of an event is not known.

Examples:

• The new service could begin any day now.
• Officials may announce the results any day.
• The team could return to training any day this week.

On Social Media

The phrase also works well in casual posts and captions.

Examples:

• A good book is welcome any day.
• I would enjoy a quiet afternoon like this any day.
• Fresh coffee makes any day better.

In Formal Writing

Use any day when you want to express an open choice or an uncertain date.

Examples:

• Applicants may submit their forms any day before the final deadline.
• The review process may begin any day.
• The committee can arrange another meeting any day next month.

In Everyday Conversation

Here are a few natural examples:

• We can go shopping any day.
• I would watch that film any day.
• You can ask me for help any day.

Anyday or Any Day Google Trends & Usage Data

People search for anyday or any day because they want to know which spelling is correct. Some also want to understand the phrase any day now or learn how to use it in a sentence.

Google Trends can help compare search interest in these forms. However, it is important to understand what the data means before making claims about popularity.

What Can Influence Search Interest?

Search interest may vary based on:

• Country: People in different countries may search for spelling help at different times.
• Education: Students may check the phrase while writing essays or completing assignments.
• Work: Office workers may look up the correct form for emails and reports.
• Online writing: Bloggers and social media users may search for examples.
• Spelling confusion: People may compare anyday with any day because other similar words are joined.

How to Check Google Trends

Follow these steps to compare the terms:

1. Open Google Trends.
2. Search for “any day.”
3. Add “anyday” as a comparison term.
4. Select a country or choose worldwide results.
5. Choose a time period, such as the past 12 months.
6. Review the interest-over-time graph and country breakdown.

How to Read the Results

Google Trends uses a scale from 0 to 100. These numbers show relative search interest, not the exact number of searches. A score of 100 marks the highest interest in the selected location and time period. A score of 0 may mean that the search volume is too low to display. <Cite refs={[“turn484006search3″,”turn484006search0”]}/>

Do not assume that a higher score makes a spelling correct. Search interest only shows what people look for. For spelling advice, standard dictionary entries and accepted writing rules are more useful.

Anyday vs Any Day Comparison Table

Use this table to understand the correct spelling and related expressions.

FAQs

1. Is anyday one word or two?

The correct standard spelling is any day, written as two words. Anyday is generally considered a spelling mistake in ordinary writing.

2. Is any day correct in British English?

Yes. British English uses any day as two words. It does not have a special one-word spelling.

3. Is any day correct in American English?

Yes. American English also uses any day. The spelling is the same in both varieties.

4. What does any day mean?

Any day means whichever day is suitable or possible. For example, “You can visit any day” means you may choose the day.

5. What does any day now mean?

Any day now means that something is expected very soon, but the exact time or date is not known.

Example: “The package should arrive any day now.”

6. What is the difference between any day and every day?

Any day means whichever day. Every day means each day.

Examples:

• You can visit any day.
• I exercise every day.

7. Is anyday ever acceptable?

You may see Anyday in a brand name, business name, username, or creative title. However, use any day in normal sentences, schoolwork, and professional writing.

Conclusion

The choice between anyday or any day is simple once you know the standard spelling. Any day is correct in modern everyday English. It should be written as two separate words in American, British, Australian, and other forms of English.

The phrase can refer to whichever day is suitable, an unknown date, or a strong preference. For example, “You can visit any day” gives someone a free choice. Meanwhile, “The package may arrive any day now” means it is expected soon.

The most common mistake is joining the words because expressions such as anyone and anywhere are written as one word. However, any day keeps its space.

For clear and professional writing, always use the two-word form. It works in emails, articles, school assignments, reports, and social media posts. When in doubt, remember this easy rule: write any day, not anyday.

Zainab Noor

Zainab Noor is a passionate content writer specializing in grammar and English language topics. With 2 years of experience, she creates clear, engaging, and SEO-friendly content that helps readers understand grammar, improve their writing skills, and use English with greater confidence.