The phrase “for completeness’ sake” is often used when you want to include extra information so nothing is missing.
It helps make your message clear and thorough. However, using the same phrase again and again can sound repetitive or too formal.
That’s why learning other ways to say “for completeness’ sake” is useful.
Different words can change how your message sounds. Some alternatives feel more formal, while others are friendly and casual.
By choosing the right phrase, you can sound more natural, confident, and professional.
In this guide, you will learn simple and clear alternatives, along with examples to help you use them correctly in real life.
What Does “For Completeness’ Sake” Mean?
“For completeness’ sake” means adding something extra so that nothing is left out. It is often used when the information is not very important but still worth mentioning.
It is a formal phrase and usually appears in writing, such as reports, emails, or academic work. Grammatically, it is a prepositional phrase used to explain why something is being added.
When to Use “For Completeness’ Sake”
You can use this phrase in many situations:
- Formal writing — reports, essays, research papers
- Business communication — emails, presentations
- Professional discussions — meetings or explanations
- Detailed explanations — when you want to include all points
In casual speech, people often use simpler alternatives because this phrase can sound a bit formal.
Is It Professional/Polite to Say “For Completeness’ Sake”?
Yes, it is professional and polite. It shows that you care about giving full information.
However, in modern business communication, it may sound slightly old-fashioned or too formal. Many professionals prefer simpler phrases like “for clarity” or “just to be thorough.”
So, while it is correct, using alternatives can make your communication sound more natural and modern.
Pros and Cons of Using “For Completeness’ Sake”
Pros:
- Shows attention to detail
- Sounds formal and professional
- Useful in academic and official writing
Cons:
- Can feel outdated
- Too formal for casual conversation
- May sound wordy or unnecessary
11 Other Ways to Say “For Completeness’ Sake”
1. Phrase: For clarity
Meaning: To make something easier to understand
Explanation: Used when you want to avoid confusion
Example Sentence: For clarity, the meeting starts at 10 AM.
Best Use: Formal, Business
Worst Use: Very casual chats
Tone: Neutral
2. Phrase: To be thorough
Meaning: To include all details
Explanation: Shows careful thinking and attention
Example Sentence: To be thorough, we checked all the data twice.
Best Use: Professional, Academic
Worst Use: Informal texting
Tone: Formal
3. Phrase: For the sake of completeness
Meaning: Same as the original phrase
Explanation: Slightly more modern variation
Example Sentence: For the sake of completeness, we added the final report.
Best Use: Formal writing
Worst Use: Casual speech
Tone: Formal
4. Phrase: Just to cover everything
Meaning: To make sure nothing is missed
Explanation: More relaxed and conversational
Example Sentence: Just to cover everything, I’ll send you the file again.
Best Use: Informal, Workplace chats
Worst Use: Academic writing
Tone: Friendly
5. Phrase: For accuracy
Meaning: To ensure correctness
Explanation: Focuses on correct information
Example Sentence: For accuracy, please double-check the numbers.
Best Use: Professional, Technical
Worst Use: Casual conversations
Tone: Formal
6. Phrase: To make it complete
Meaning: To add missing parts
Explanation: Simple and easy to understand
Example Sentence: To make it complete, we included the last section.
Best Use: General use
Worst Use: Very formal writing
Tone: Neutral
7. Phrase: For full context
Meaning: To give the complete picture
Explanation: Helps others understand the situation better
Example Sentence: For full context, the project started last year.
Best Use: Business, Writing
Worst Use: Casual texting
Tone: Professional
8. Phrase: Just in case
Meaning: To prepare for possible need
Explanation: Often used in casual speech
Example Sentence: I’ll bring extra copies just in case.
Best Use: Informal
Worst Use: Formal reports
Tone: Casual
9. Phrase: For reference
Meaning: To provide helpful extra information
Explanation: Common in emails and documents
Example Sentence: I’ve attached the file for reference.
Best Use: Business communication
Worst Use: Casual chats
Tone: Professional
10. Phrase: To be precise
Meaning: To give exact details
Explanation: Focuses on accuracy and detail
Example Sentence: To be precise, the cost is $45.50.
Best Use: Formal, Academic
Worst Use: Informal talk
Tone: Formal
11. Phrase: For the record
Meaning: To state something officially
Explanation: Often used to clarify or confirm
Example Sentence: For the record, I completed the task yesterday.
Best Use: Professional, Legal
Worst Use: Friendly conversation
Tone: Formal
Comparison Table of Top Alternatives
| Phrase | Tone | Best Use |
|---|---|---|
| For clarity | Neutral | Business, Writing |
| To be thorough | Formal | Academic, Reports |
| Just to cover everything | Friendly | Casual Work Talk |
| For reference | Professional | Emails, Documents |
| Just in case | Casual | Daily Conversation |
| For full context | Professional | Explanations |
FAQs
What is another formal way to say “for completeness’ sake”?
You can say “for the sake of completeness” or “to be thorough.”
Can I use “for completeness’ sake” in emails?
Yes, but it may sound formal. Try “for clarity” for a modern tone.
Is “just in case” a good alternative?
Yes, but only in informal situations.
Which phrase is best for business writing?
“For reference” and “for clarity” work very well.
Why should I use alternatives?
Using different phrases helps you sound more natural and improves your communication skills.
Conclusion
Learning other ways to say “for completeness’ sake” helps you speak and write better English.
It allows you to match your tone with the situation, whether formal or casual.
Simple phrases like “for clarity” or “just to cover everything” can make your message clearer and more natural.
Try using these alternatives in your daily communication. Over time, you will sound more fluent, confident, and professional.

Robert Evans is a passionate English language educator dedicated to helping learners improve their vocabulary and communication skills in a simple and effective way.


