Buddy vs Companion

When to use each in English, with meaning, register, and examples.

Buddy

InformalTop 2,000 (common)C1noun

Companion

Top 2,000 (common)C1noun
Most formal: Companion
 BuddyCompanion
Pronunciation🇬🇧 /["/ˈbʌdi/"]/🇺🇸 /["/ˈbʌdi/"]/🇬🇧 /["/kəmˈpænjən/"]/🇺🇸 /["/kəmˈpænjən/"]/
MeaningA friend or someone you like spending time with.A friend or someone you spend time with.
Examplean old college buddy of mineShe brought her trusty companion on the hiking trip to explore the mountains together.
RegisterInformalNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR levelC1C1
Part of speechnounnoun
Collocationsbuddy system, best buddy, buddy upagreeable, boon, charming, animal, companion for, companion to, agreeable, boon, charming, animal, companion for, companion to
Antonymsenemy, rivalenemy, rival, loner
Common mistakesUsing 'buddy' when referring to someone older or in a position of authority., Confusing 'buddy' with 'pal' or 'mate' in different English-speaking regions., Overusing 'buddy' in formal emails or communications.Using 'companion' to refer to a business associate instead of a personal friend., Confusing 'companion' with 'partner' in all contexts., Using 'companions' inappropriately in singular contexts.
Usage notesCommonly used among friends. Not suitable for formal settings or when addressing someone in a professional context.Commonly used for pets, friends, or people who accompany you. Not often used in a formal context. Avoid using it to refer to someone you don't have a close relationship with.

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Buddy

Frequently asked questions: Buddy vs Companion

What's the difference between Buddy and Companion?

Buddy: A friend or someone you like spending time with. Companion: A friend or someone you spend time with.

Which is more formal: Buddy and Companion?

Companion is the most formal of these.

Are Buddy and Companion the same CEFR level?

Buddy: C1, Companion: C1 on the CEFR scale.

What part of speech are Buddy and Companion?

Buddy: noun, Companion: noun.

Can you show an example of each?

Buddy: an old college buddy of mine Companion: She brought her trusty companion on the hiking trip to explore the mountains together.

Can I use Buddy and Companion interchangeably?

Not always. Buddy and Companion are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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