stepbrother definition

Stepbrother – is the son of your stepmother or stepfather, but not the biological son of both your parents. In English, this term is used in discussions involving blended families, family changes through remarriage, domestic situations, introductions, and personal relationships.

Part of speech:
Noun (singular countable)
Phonetic transcription (IPA):
/ˈstepˌbrʌ.ðɚ/
CEFR level:
B1
Word frequency:

Pronunciation & Spoken Tips for “Stepbrother”

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Stress the first part clearly: STEP-brother. The th in “brother” is voiced, so your tongue touches your teeth and your voice vibrates: /ð/

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Countability and Plural Rules for Stepbrother

It is a common countable noun and therefore, its grammar is not complicated like that of son-in-law. It can take articles, numbers, possessive forms, and be pluralized. Observe the following example and write similar ones for your family.

Form 

Correct use 

Examples

Singular 

stepbrother 

  I have a stepbrother from my mother’s second marriage.

Plural 

stepbrothers 

  Her two stepbrothers live in different cities.

Singular possessive 

stepbrother’s 

  His stepbrother’s company is hiring remote designers.

Plural possessive 

stepbrothers’ 

  My stepbrothers’ children are coming for the weekend.

With an article 

a/the stepbrother 

  The stepbrother she grew up with is now one of her closest friends.

Do not write step brother as two separate words in standard modern English. The usual spelling is “stepbrother”, one word.

Types of “Stepbrother” in Blended Families

Family terms can be very sensitive, and thus one should use their words wisely. While some individuals find it extremely affectionate to refer to someone as their “stepbrother”, others will use the term purely from an official standpoint. 

Type or phrase 

Meaning 

Example in context

older stepbrother 

a stepbrother who is older than you 

  My older stepbrother helped me move into my first flat.

younger stepbrother 

a stepbrother who is younger than you 

  Her younger stepbrother is finishing university this year.

new stepbrother 

someone who recently became your stepbrother 

  He is still getting used to having a new stepbrother at family dinners.

close stepbrother 

a stepbrother you have a strong relationship with 

  I’m lucky because my stepbrother and I are genuinely close.

estranged stepbrother 

a stepbrother you no longer speak to 

  She has an estranged stepbrother who lives abroad.

Use “half-brother” only when you share one biological parent. Use “stepbrother” when the connection comes through a parent’s marriage or long-term partner, not shared biology.

Natural Collocations With the Word “Stepbrother”

Collocations make your English sound natural since they tell you which words go well together. In the case of a “stepbrother”, people tend to speak about meeting someone, growing up with him, getting on with him, connecting with him, or being close to him.

Collocation 

Meaning 

Example 

have a stepbrother 

be related to one through a parent’s partner 

  I have a stepbrother, but we did not grow up in the same home.

meet your stepbrother 

see him for the first time 

  She met her stepbrother at her father’s wedding.

grow up with a stepbrother 

spend childhood in the same household 

  He grew up with his stepbrother after their parents remarried.

get along with your stepbrother 

have a friendly relationship 

  I get along with my stepbrother better now than I did as a teenager.

reconnect with a stepbrother 

build contact again after time apart 

  He reconnected with his stepbrother after moving back to London.

be close to your stepbrother 

have a strong personal bond 

  She is very close to her stepbrother and asks him for career advice.
stepbrother in a sentence

Common Mistakes with the Word “Stepbrother” and How to Fix Them

Mistakes made with family words may alter the meaning of a sentence. Some common errors include spelling mistakes, mistaking “stepbrother” for “half-brother”, and confusion with possessives. Be sure to avoid this particular pitfall by never guessing relationships where biological factors come into play.

Incorrect sentence  Correct variant

Why?

  My step brother lives in Bristol.
  My stepbrother lives in Bristol.

Standard spelling is one word. 

  He is my stepbrother because we share a father.
  He is my half-brother because we share a father.

Shared biological parent means half-brother

  My stepbrothers car broke down.
  My stepbrother’s car broke down.

Use an apostrophe for singular possession. 

  I have three stepbrother.
  I have three stepbrothers.

Use plural -s after numbers. 

  She married my stepbrother’s father, so he is my stepbrother.
  Her son became my stepbrother when she married my father.

Explain the family link clearly. 

“Stepbrother” in Other Languages

Discover more about the pronunciation and spelling of this word in the German, French and Spanish languages. Listen and repeat.

Language Word for “Stepbrother”
Flag Spanish Spanish   Hermanastro
Flag German German   Stiefbruder
Flag French French   Demi-frère