Boy vs Son

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

Boy

Top 1,000 (very common)A1noun

Son

Top 1,000 (very common)A1noun
 BoySon
Pronunciation🇬🇧 /["/bɔɪ/"]/🇺🇸 /["/bɔɪ/"]/🇬🇧 /["/sʌn/"]/🇺🇸 /["/sʌn/"]/
MeaningA young male child or teenager.A male child.
ExampleThe boy played soccer with his friends after school.My son just graduated from high school.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)
CEFR levelA1A1
Part of speechnounnoun
Collocationsbig, little, small, have, big, little, small, havebaby, newborn, infant, have, bear, give birth to, grow up
Antonymsgirl, womandaughter, mother
Common mistakesConfused with 'girl' as the opposite gender, Overused in contexts where 'man' is more appropriate for older males, Used in plural as 'boy's' instead of 'boys'Using 'son' to refer to adult males, not just children., Confusing with 'sun', which refers to the star., Assuming it's gender-neutral when it specifically refers to males.
Usage notesUsed to refer to a child or teenager, typically under the age of 18. In formal contexts, refer to 'young man’ or 'male child'.Used in familial contexts. Appropriate in both formal and informal situations. Not commonly used when referring to a daughter or child in general.

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Boy
Son

Frequently asked questions: Boy vs Son

What's the difference between Boy and Son?

Boy: A young male child or teenager. Son: A male child.

Are Boy and Son the same CEFR level?

Boy: A1, Son: A1 on the CEFR scale.

What part of speech are Boy and Son?

Boy: noun, Son: noun.

Can you show an example of each?

Boy: The boy played soccer with his friends after school. Son: My son just graduated from high school.

Can I use Boy and Son interchangeably?

Not always. Boy and Son 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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