Followup or Follow Up? Discover the Correct Usage

You typed “followup,” saw the red squiggly line, then wondered if your keyboard was judging you. Nobody wants a typo in a client email or a meeting invite. The fix is simple. Use follow up as a verb (an action) and follow-up as a noun or adjective (a thing). The one word version, followup, is nonstandard. This guide shows you exactly how to choose.

Quick Answer

Here is the short version for anyone in a hurry.

• Follow up (two words) is a verb. Example: “I will follow up tomorrow.”
• Follow-up (hyphenated) is a noun or an adjective. Example: “I sent a follow-up.” or “We need a follow-up meeting.”
• Followup (one word) is not standard English. Major dictionaries and style guides such as AP and Chicago do not list it as the preferred form.

If you do something, use two words. If you name something, use the hyphen. That rule solves about 95% of cases, and the rest of this article covers the edge cases.

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Meaning and Definition of Each Word (Follow Up)

Before the rules, let’s look at what each form actually means. Once the meaning clicks, the spelling follows naturally.

1. Follow Up (Verb)

To follow up means to take another action after an earlier one, usually to continue, check, or complete something. Think of it as a nudge with good manners.

You follow up after a job interview, a sales call, a doctor’s visit, or a message nobody answered. The verb often pairs with “on” or “with.” You follow up on a request, and you follow up with a person.

The “up” in this phrase adds a sense of finishing the job, much like “eat up” or “clean up.” The verb has a long history, and early uses described pursuing something closely. That makes sense, because a good follow up pursues an answer without chasing anyone down the street.

2. Follow-up (Noun / Adjective)

As a noun, a follow-up is the thing you do or send afterward. Examples include a follow-up email, a follow-up call, or a follow-up appointment. In this role, it names an object.

As an adjective, follow-up describes another noun. In “follow-up question,” the word “follow-up” tells you what kind of question it is.

The noun and adjective uses grew common in the 1900s, especially in medicine, journalism, and business. Doctors scheduled follow-up visits. Newspapers ran follow-up stories. Offices produced follow-up emails by the thousands, and many of them are still unread.

3. Followup (One Word)

Followup shows up in texting, social media, and quick typing. It also appears in some product names and software menus, where designers squeeze words together to save space.

In formal writing, treat it as an error. Spell checkers usually flag it, and editors usually fix it. Use it only if a brand or a system makes you.

Key Differences Between the Words

So far, you know what each form means. Now let’s put them side by side so the differences are easy to spot.

Form	Part of Speech	Meaning	Example
Follow up	Verb	To take further action	“Please follow up with the client.”
Follow-up	Noun	A later action or message	“Her follow-up was clear.”
Follow-up	Adjective	Describing a later item	“A follow-up call is scheduled.”
Followup	Nonstandard	Informal one word spelling	Avoid in formal writing

Here is the pattern in plain terms:

• Verbs need space between the words.
• Nouns and adjectives need the hyphen.
• The one word form does not earn a place in your writing.

The same pattern applies to other phrasal verbs. You “check in” at a hotel, but you stand in a “check in line.” You “set up” a meeting, and then you join a “meeting setup.” English is consistent about this, even when it feels like it is not.

Grammar Rules

Knowing the pattern is great. Knowing the rules behind it makes you faster and more confident.

1. Verb Form (No Hyphen)

A verb needs two separate words. This holds in every tense.

• Present: “I follow up every Friday.”
• Past: “She followed up with the vendor.”
• Continuous: “He is following up on the invoice.”

Notice that only the first word changes form. The “up” stays put.

2. Noun/Adjective Form (Hyphenated)

The hyphen joins two words into one idea. For the noun, add an s to make it plural: “two follow-ups.” For the adjective, place it before the noun it describes: “a follow-up survey.”

3. Avoid Single Word

Skip “followup” in emails, reports, resumes, essays, and anything your boss might read. A small spelling slip can make a careful writer look rushed.

Followup or Follow Up Grammarly

Many writers check this exact question in Grammarly. Tools like Grammarly typically flag “followup” and suggest “follow-up” or “follow up,” depending on the sentence.

The tool reads the role of the word in your sentence, so it usually gets the choice right. Still, it can miss context, especially in a short subject line. If you write “Follow up needed” as a headline, the tool may accept it, even though “Follow-up needed” is the better choice because “follow-up” describes a need, not an action.

Use the tool as a second opinion, not a final judge.

Followup or Follow-Up Email

Email is where this question comes up most. Let’s make it practical.

Use follow up when you describe the action:

• “I am writing to follow up on my last message.”
• “Following up on our call, here is the summary.”

Use follow-up when you name the message itself:

• “This is a follow-up to my previous email.”
• “Subject: Follow-up on project timeline”

A helpful tip: “Following up” in a sentence is almost always correct, because it uses the verb form. People rarely get it wrong. The trouble starts with subject lines, where the hyphen matters.

Here is a quick example of a clean email opening:

Hi Maria, I wanted to follow up on the proposal I sent Tuesday. Please let me know if you have questions.

Short, polite, and no spelling drama.

Followup or Follow Up Meeting

Meetings follow the same logic, but they create one extra trap. Is it a “follow up meeting” or a “follow-up meeting”?

The correct form is follow-up meeting. Here, “follow-up” describes the meeting, so it works as an adjective and needs the hyphen.

Compare these two sentences:

• “Let’s follow up after the meeting.” (verb, two words)
• “Let’s schedule a follow-up meeting.” (adjective, hyphenated)

The first sentence uses an action. The second names a type of meeting. If you can swap in “second” or “next” without breaking the sentence, you need the hyphen. “Let’s schedule a next meeting” sounds odd, but “a second meeting” works fine, and that confirms the adjective use.

Examples in Sentences

Rules help, but examples make them stick. Here are real life style sentences for each role.

Follow Up (Verb)

• “I will follow up with the hiring manager on Monday.”
• “She followed up after the demo to answer questions.”
• “Please follow up on the unpaid invoice.”
• “He is following up with three clients today.”

Follow-up (Noun)

• “The doctor ordered a follow-up in six weeks.”
• “Her follow-up arrived within an hour.”
• “I sent two follow-ups, and I still got silence.”

Follow-up (Adjective)

• “We have a follow-up appointment on Thursday.”
• “The reporter asked a sharp follow-up question.”
• “The team will send a follow-up survey next week.”

Notice how the verb always describes an action, while the other two forms describe a thing. That single habit prevents most errors.

Common Mistakes

Even strong writers slip here. Knowing the usual traps helps you avoid them.

Incorrect vs Correct

Incorrect	Correct
I will followup tomorrow.	I will follow up tomorrow.
Please send a follow up email.	Please send a follow-up email.
Let’s schedule a followup meeting.	Let’s schedule a follow-up meeting.
She made a follow-up with the client.	She followed up with the client.
I need to follow-up on this.	I need to follow up on this.

The last two mistakes deserve attention. Writers often overcorrect by adding a hyphen to the verb or by using the noun where a verb belongs.

Key Lesson:

The hyphen belongs to the thing, not the action. If a sentence has someone doing something, use two words. If it names an item, use the hyphen.

Tips to Remember the Difference

You do not need a grammar degree. You need a few mental shortcuts.

1. Action = Two Words

Verbs move, so they get room to stretch. Two words, two steps.

2. Thing = Hyphen

Nouns and adjectives are stable, like a sealed envelope. The hyphen holds them together.

3. Avoid One Word

When you doubt yourself, skip “followup” entirely. It is never the safest option.

4. Replace Test

Swap the phrase with “continue” or “check back.” If the sentence still works, it is a verb, so use two words. Now swap in “second” or “next.” If that works, it is a noun or adjective, so add the hyphen.

Try it: “I will follow up tomorrow.” becomes “I will continue tomorrow.” That works, so it is a verb. “Send a follow-up email.” becomes “Send a second email.” That works too, so the hyphen stays.

Quick Quiz: Followup or Follow Up?

Pick the correct option in each sentence. Answers sit below.

1. “Please (follow up / follow-up) with the supplier.”
2. “She sent a (follow up / follow-up) message.”
3. “The (follow up / follow-up) is due Friday.”
4. “We should (follow up / follow-up) after lunch.”
5. “He booked a (followup / follow-up) visit.”

Answers: 1. follow up. 2. follow-up. 3. follow-up. 4. follow up. 5. follow-up.

If you scored five out of five, you can retire the red squiggly line. If you scored three, read the Replace Test again. Nobody is grading you here.

When to Use Each Word

Let’s turn all of this into a simple decision guide. This answers the “Which one should you use?” question directly.

Use “Follow Up” When:

• Someone performs an action.
• You can add a subject: “I,” “she,” “they,” or “we.”
• The phrase follows words like “to,” “will,” “should,” or “please.”

Use “Follow-up” When:

• You name a message, call, visit, or meeting.
• You describe another noun, such as a question, survey, or email.
• An article like “a,” “the,” or “my” comes before it.

Avoid “Followup” When:

• You write for work, school, or publication.
• You send emails, reports, or documents.
• You want your writing to look careful and professional.

One more practical point: be consistent inside a single document. If one page says “follow-up email” and the next says “follow up email,” readers notice, even if they cannot explain why.

Synonyms or Related Words

Sometimes the best fix is a different word. Variety also keeps your writing from sounding like a broken record.

For “Follow Up” (Verb):

• Check back
• Circle back
• Touch base
• Reach out again
• Pursue
• Revisit
• Continue the conversation

Use “circle back” and “touch base” in casual workplace talk. Use “pursue” and “revisit” when you want a more formal tone.

For “Follow-up” (Noun):

• Reminder
• Next step
• Second message
• Continuation
• Sequel (for books, films, and shows)
• Subsequent contact

For the adjective, consider “later,” “additional,” “subsequent,” or “second.” For example, “a subsequent meeting” means the same thing as “a follow-up meeting,” with a slightly more formal feel.

Frequently Asked Questions (FAQs)

Is it followup or follow up or follow up?

Your question lists “follow up” twice, so here is the full answer. The correct forms are follow up (verb) and follow-up (noun or adjective). “Followup” as one word is nonstandard and best avoided.

How do you use follow up in a sentence?

Use it as a verb that describes a later action. Example: “I will follow up with you on Friday.” You can also use “follow up on” for a topic and “follow up with” for a person.

Does followup need a hyphen?

Yes, when it works as a noun or adjective, it needs a hyphen: “follow-up.” When it works as a verb, it needs a space instead: “follow up.” The single word “followup” is not the standard choice in either role.

What does followup mean in an email?

In an email, a follow-up is a message that continues an earlier one. People send it to remind, clarify, thank, or request an answer. A subject line such as “Follow-up: Budget review” tells the reader this message builds on a previous one.

Conclusion

The choice between followup or follow up comes down to one question: is it an action or a thing? Actions use two words. Things use a hyphen. The single word form stays out of your formal writing.

Keep the Replace Test handy, and you will rarely need to look this up again. Now go send that follow-up, or follow up on the one you forgot. Your inbox will thank you.