Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a companion
Grammar usage guide and real-world examplesUSAGE SUMMARY
"a companion" is correct and usable in written English.
You could use it when referring to someone who is accompanying someone else on a journey or experience, for example: My sister is my faithful companion on all my travels.
✓ Grammatically correct
News & Media
Science
Wiki
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
A companion.
News & Media
A companion horse.
News & Media
He's a companion.
News & Media
He was also publishing a companion monograph.
News & Media
A companion volume to "Holes".
News & Media
I didn't have a companion.
News & Media
She's a companion on this long journey".
News & Media
The problem was finding a companion.
News & Media
A companion whispered "I count 14 waiters".
News & Media
No, I'm looking for a companion.
News & Media
"A knife is a companion," he said.
News & Media
Expert writing Tips
Best practice
When using "a companion", consider the specific nuance you want to convey. Is it simply someone who is present, or does the word imply a deeper connection or shared purpose?
Common error
Avoid using "a companion" in highly formal or professional writing where a more specific term like "colleague", "associate", or "partner" might be more appropriate.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a companion" primarily functions as a noun phrase. It identifies a person or thing that accompanies or associates with someone else. Ludwig provides numerous examples showcasing its use in diverse contexts, reinforcing its role as a descriptor of association and fellowship.
Frequent in
News & Media
49%
Science
34%
Wiki
9%
Less common in
Formal & Business
3%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "a companion" is a versatile noun phrase that signifies partnership, support, or shared presence. Ludwig AI validates its grammatical correctness and demonstrates its widespread use across diverse contexts, particularly in News & Media and Science. While generally neutral in register, careful consideration of the specific context is advised to ensure appropriateness. Remember to consider alternative expressions like "friend", "partner", or "associate" for nuanced communication. The phrase enjoys very common usage and is widely understood.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a partner
Implies a more formal or equal relationship, often in business or personal life.
an associate
Focuses more on a professional or formal connection.
a friend
Highlights the emotional connection and mutual affection.
an ally
Focuses on shared goals and mutual support, especially in challenging situations.
a fellow traveler
Emphasizes shared experiences and journeys, both literal and metaphorical.
a buddy
Suggests a casual and friendly relationship, often between men.
a confidant
Highlights the trust and sharing of secrets within the relationship.
a consort
Suggests a close relationship, often with romantic or historical connotations.
an escort
Implies a more formal or professional accompaniment, often for protection or guidance.
a sidekick
Indicates a subordinate or supporting role, often in a humorous or adventurous context.
FAQs
How can I use "a companion" in a sentence?
You can use "a companion" to describe someone who accompanies you on a journey, shares an experience, or provides support. For example, "My dog is "a companion" on my daily walks".
What are some synonyms for "a companion"?
Alternatives to "a companion" include "a friend", "a partner", "an associate", or "an ally", depending on the context.
Is it correct to use "a companion" to describe an object?
Yes, "a companion" can be used to describe an object that serves a similar purpose to a person. For example, "This book is "a companion" to the course".
What is the difference between "a companion" and "an acquaintance"?
"A companion" suggests a closer relationship and shared experiences, while "an acquaintance" implies a more casual and superficial connection. "A companion" is someone you spend time with, while "an acquaintance" is simply someone you know.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested