noun
stepsister
noun
1
A girl or woman who is the daughter of your stepparent from an earlier relationship, and to whom you're not related by blood.
"My stepsister moved in with us after my dad remarried."
"We get on well even though my stepsister and I only met as teenagers."
How to Use Stepsister
Learner’s notesIn plain EnglishA stepparent's daughter, who joins your family through marriage rather than birth.
Common mistake
Don't mix this up with a half-sister, who shares one biological parent with you.
Easily confused with
half-sister
Word Forms
stepsisters plural
Study it as flashcards or scroll it in Flow — saved to your collection.
Test yourself on “stepsister”
A quick quiz — meaning, synonyms & usage
→
Fill the Gap
Can you complete this real example?
My _____ moved in with us after my dad remarried.
Etymology
From step- (used for family members gained through remarriage) plus sister.