Goodluck or Good Luck? Correct Spelling, Meaning & Examples

Good luck is the correct spelling, while goodluck is not the standard form. If you are writing a message, email, or school assignment, always write good luck as two words.

You may type a quick message before a friend’s exam and suddenly wonder if goodluck should be written together.

It is an easy mistake because the two words are often spoken as one phrase. However, English keeps them separate.

Good luck can be used to wish someone success, such as “Good luck with your exam!” It can also describe favorable fortune, as in “We had good luck with the weather.”

In this guide, you’ll learn why good luck is correct, how to use it naturally, common mistakes to avoid, and the difference between good luck and similar expressions.

Goodluck or Good Luck – Quick Answer

Good luck is the correct standard spelling. It is written as two separate words, not “goodluck.” Use good luck when you want to wish someone success or refer to good fortune.

For example:

Good luck with your exam!
I wish you good luck in your new job.
She had some good luck yesterday.
“Goodluck” is a common spelling mistake and should generally be avoided in standard English.

Quick Rule

Write “good luck” as two words when wishing someone success or talking about fortunate events.

What Does “Good Luck” Mean?

Good luck has two main uses. It can describe favorable fortune, or it can be used to wish someone success. The meaning depends on how it appears in the sentence.

When you say, “Good luck!” to someone, you are wishing them success.

For example:

Good luck on your interview!

Here, you hope the person does well.

The phrase can also describe something fortunate that happens by chance.

We had good luck with the weather.

Here, good luck means favorable fortune.

Cambridge Dictionary lists both uses of the expression. It also gives examples such as wishing someone success before an event.

Good Luck as Fortune

The phrase can also describe something fortunate.

For example:

We had good luck and found a parking space quickly.

In this sentence, nobody is wishing anyone success. The phrase describes a fortunate result.

Read More: As Well or Aswell? Correct Spelling, Meaning & Examples

Read More: Grateful To or Grateful For? The Correct Difference Explained

Why Is “Good Luck” Written as Two Words?

Good luck is written as two words because it is a combination of the adjective good and the noun luck. The adjective describes the noun.

Think about similar combinations:

good news
good weather
good health
good fortune
good advice
good luck
These are normally written as separate words.

The word good describes the kind or quality of luck.

So:

good + luck = good luck

There is no standard spelling rule that combines the two words into goodluck.

Good Luck vs Goodluck: What Is the Difference?

The difference is simple: good luck is the standard form, while goodluck is generally a spelling error. The standard expression appears as two words in dictionaries and normal English writing.

Form	Correct?	Use
good luck	Yes	Standard English
goodluck	No	Common misspelling
Good Luck	Yes, in titles or special capitalization	Depends on context
GOOD LUCK	Yes	Emphasis or design

Example
Correct:

Good luck with your interview.

Incorrect in standard writing:

Goodluck with your interview.

The meaning is still easy to understand in the second sentence. However, the spelling is not standard.

How to Use “Good Luck” in a Sentence

Good luck can appear in many sentence structures. You can use it by itself, after a verb, or with words such as with, on, or in.

1. “Good luck!” by itself

This is common before an important event.

Good luck!

Good luck tomorrow!

Good luck tonight!

2. “Good luck with” something

Use with when referring to a task, project, situation, or activity.

Good luck with your exam.

Good luck with your new business.

Good luck with the interview.

Good luck with your presentation.

3. “Good luck on” something

On is also common with events, especially tests, exams, and similar situations.

Good luck on your test.

Good luck on your interview.

Good luck on your first day.

Both good luck with and good luck on can be natural. The choice depends on the noun and the context.

4. “Good luck in” something

Use in when talking about success within a situation, activity, or period.

Good luck in your new job.

Good luck in your studies.

Good luck in the competition.

5. “Good luck to” or “good luck for”

Use to when you are wishing luck to a person or a group.

Good luck to everyone taking the exam today!

Good luck to us all.

Use for when you are wishing luck for an event or a time that is coming up.

Good luck for tomorrow.

Good luck for your exam.

You can also drop the preposition when you are talking about a time. “Good luck tomorrow” and “good luck today” are shorter and sound just as natural as “good luck for tomorrow” and “good luck for today.”

Good Luck in Different Situations

The expression works in both casual and more formal communication.

Before an Exam
Good luck on your exam tomorrow!

Before a Job Interview
Good luck with your interview!

Before a New Job
Good luck in your new position.

Before a Competition
Good luck in the competition!

Before a Trip
Good luck on your journey!

In a Text Message
Good luck! You’ve got this.

In an Email
I wish you good luck with your upcoming presentation.

On Social Media
Good luck to everyone taking the exam today!

The exact wording can change with the situation, but good luck stays as two words.

Common Mistakes With “Good Luck”

Mistake 1: Writing “Goodluck”

This is the most common mistake related to this keyword.

❌ Goodluck with your exam.

✅ Good luck with your exam.

The standard expression has a space between good and luck.

Mistake 2: Treating “Good Luck” as One Word

English has many compound words, so it can be tempting to combine familiar words.

For example:

notebook
classroom
football
bedroom
But good luck does not follow that pattern.

It remains two words.

Mistake 3: Using “Good Luck” as an Adjective

Do not automatically combine good luck into a single word when it appears before another noun.

For example:

She has a good luck charm.

Here, good luck remains two words.

You should not write:

She has a goodluck charm.

The standard phrase is good luck charm.

Mistake 4: Confusing “Good Luck” With “Lucky”

Good luck and lucky are related, but they are not the same grammatical form.

Good luck is a noun phrase.

I wish you good luck.

Lucky is an adjective.

You are lucky.

Compare:

She had good luck.

She was lucky.

Both sentences relate to favorable fortune, but the grammar is different.

Mistake 5: Writing “Good Lucky”
Good lucky is not a standard expression in English. It sometimes appears when people mix up good luck and lucky.

❌ I wish you good lucky.

✅ I wish you good luck.

If you want an adjective, use lucky on its own, as in “You are lucky.”

Is “Goodluck” Ever Correct?

In standard English writing, good luck is the correct form. “Goodluck” may appear informally online, in usernames, branding, hashtags, or other stylized contexts, but those uses do not make it the standard spelling.

This distinction matters.

A website name, username, or brand may combine words for design reasons.

For example, a username could be:

@goodluck123

That does not mean goodluck has become the standard English spelling.

Goodluck is also used as a personal name in some countries, such as Nigeria. In that case, it is simply a name and not a spelling mistake.

When writing an essay, email, school assignment, article, or professional message, use:

good luck

not:

goodluck

Good Luck or Best of Luck

Good luck and best of luck are both natural ways to wish someone success.

Good Luck
Good luck with your exam!

This is direct, common, and friendly.

Best of Luck
Best of luck with your new job!

This has a similar meaning. It wishes someone the greatest possible success.

Both expressions are common in English.

You can also say:

I wish you good luck.
I wish you the best of luck.
Good luck to you.
Best of luck to you.
The choice usually depends on personal style and context.

Easy Memory Trick

Remember this simple rule:

Good + luck = two words.

Think of good luck like good news or good weather.

You would not normally write:

goodnews

or:

goodweather

The same idea applies to:

good luck

Another easy trick is to remember the phrase as a wish:

Good luck!

When you are wishing someone success, picture the space between good and luck.

Good | Luck

That space is part of the standard spelling.

20 Real Examples With “Good Luck”

Here are examples showing how good luck works in everyday English.

Good luck with your exam tomorrow.
I wish you good luck in your new job.
Good luck on your driving test!
She wished me good luck before the interview.
Good luck with your presentation.
We had good luck with the weather.
Good luck in the competition!
He believes the necklace brings him good luck.
Good luck with your new project.
I hope you have good luck on your trip.
Good luck tonight!
They wished their friend good luck before the race.
Good luck with your application.
She had good luck finding a seat.
Good luck in your studies.
I just wanted to say good luck.
Good luck with everything.
The team needs some good luck today.
Good luck on your first day at work.
We wish you good luck and success.
Notice that good luck remains two words in every example.

FAQs

1.Is “goodluck” one word?

No. Good luck is the standard spelling. Write it as two separate words.

2.Is “good luck” correct?

Yes. Good luck is the standard English expression for wishing someone success or describing favorable fortune.

3.Is “goodluck” grammatically correct?

No, not in standard English. It may appear in informal online writing or names, but it is not the standard spelling.

4.Should I write “Good luck” or “Goodluck”?

Write good luck. It is the standard form used in normal English writing.

5.Is “good luck” a phrase?

Yes. Good luck is a common phrase used to describe favorable fortune or wish someone success.

6.Can I say “Good luck with” something?

Yes. Good luck with is very common.

For example:

Good luck with your exam.

Good luck with your new job.

7.Can I say “Good luck on” something?

Yes. Good luck on is also natural with certain events.

For example:

Good luck on your test.

Good luck on your interview.

8.What is another way to say “good luck”?

Common alternatives include best of luck, I wish you success, and wishing you the best. The best choice depends on the situation and tone.

9.Is “good luck” formal or informal?

It can be used in both casual and formal situations. A short “Good luck!” is natural in conversation, while “I wish you good luck with your presentation” can work in professional writing.

10.What is the difference between “good luck” and “lucky”?

Good luck is a noun phrase, while lucky is an adjective. For example, “I wish you good luck” uses the noun phrase, while “You are lucky” uses the adjective.

11.Is “best of luck” correct?

Yes. Best of luck is a correct and common way to wish someone success. It means almost the same as good luck.

12.What does “good luck then” mean?

Good luck then is usually a way of wishing someone well at the end of a conversation, as in “Okay, good luck then!” Depending on the tone, it can also sound a little dismissive or sarcastic, especially when the speaker doubts the plan will work.

13.What is the short form of “good luck”?

The most common short form is GL. It is mostly used in text messages, online chats, and gaming. In formal writing, it is better to write good luck in full.

Conclusion:

Good luck is the correct standard spelling. It should be written as two words, not goodluck. You can use it to wish someone success or to describe favorable fortune.

For example, you can say, “Good luck with your exam” or “We had good luck with the weather.”

Although goodluck may appear in usernames, branding, or casual online writing, it is not the standard spelling for normal English.

When writing an email, assignment, article, or professional message, always choose good luck.