How to Use “Sibling Rivalry” in a Sentence

Yes: “When both children wanted the same game, their sibling rivalry turned a quiet afternoon into an argument.” The phrase describes competition, jealousy, or conflict between siblings. You can use it for a brief disagreement or a pattern that comes up often; it does not mean the children never get along.

“Sibling rivalry” works best when the relationship between the children matters to the story. If two classmates compete for a prize, “rivalry” is enough; if a brother and sister keep trying to outdo each other, “sibling rivalry” adds useful context. When you speak with your children, describe the specific behavior rather than giving either child a label: “You both want the first turn” is clearer than “You two are always rivals.”

You could say, “A little sibling rivalry surfaced when the twins compared their birthday presents.” You could also write, “Their sibling rivalry eased once they stopped keeping score of every chore.” In each example, the phrase names a dynamic, while the rest of the sentence tells you what happened. Choose a concrete detail—such as a game, gift, or chore—so your reader can picture the moment.

If you are using the phrase to describe something happening at home, a simple plan can be more useful than debating who started it. Set a visible timer for a shared game, agree on the length of each turn, and tell both children what happens when time is up. For belongings that should stay separate, labeled bins or shelves can make ownership clear without requiring you to settle the same question repeatedly.

Not every disagreement is sibling rivalry. If your children argue once about whose turn it is, “a disagreement between siblings” may be more precise. Pay attention to what each child needs before choosing your words or a solution: one may want the toy, while the other wants a fair turn. For a broader look at patterns and practical responses, read our parent checklist on why sibling rivalry happens.