My dear boy vs Son

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

My dear boy

InformalBeyond 10,000 (less common)

Son

Top 1,000 (very common)A1noun
Most formal: SonMost common: Son
 My dear boySon
Pronunciation🇬🇧 //maɪ dɪə bɔɪ//🇺🇸 //maɪ dɪr bɔɪ//🇬🇧 /["/sʌn/"]/🇺🇸 /["/sʌn/"]/
Meaninga friendly way to address a young manA male child.
ExampleOh, my dear boy, you have grown so much!My son just graduated from high school.
RegisterInformalNeutral
How commonBeyond 10,000 (less common)Top 1,000 (very common)
CEFR level-A1
Part of speechnoun
Collocationsmy dear child, my dear friend, my dear sonbaby, newborn, infant, have, bear, give birth to, grow up
Antonyms-daughter, mother
Common mistakesUsing in a formal context, Overusing with acquaintances, Mispronouncing or misplacing the wordsUsing '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 in a familiar or affectionate tone, often by adults when speaking to younger males. Not appropriate in professional settings.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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My dear boy
Son

Frequently asked questions: My dear boy vs Son

What's the difference between My dear boy and Son?

My dear boy: a friendly way to address a young man Son: A male child.

Which is more formal: My dear boy and Son?

Son is the most formal of these.

Which is more common: My dear boy and Son?

Son is the most common in everyday English.

Can you show an example of each?

My dear boy: Oh, my dear boy, you have grown so much! Son: My son just graduated from high school.

Can I use My dear boy and Son interchangeably?

Not always. My dear 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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