How to Write a Strong Conclusion for Your Composition

The conclusion is the last thing your reader experiences – and it shapes everything they remember. Yet it’s often the most neglected part of a composition. Writers rush through it, repeat themselves, or resort to tired phrases like “in conclusion” that signal an ending without actually delivering one. A strong conclusion does something more: it reinforces your argument, gives the reader a sense of closure, and leaves a lasting impression. Here’s exactly how to do that.

What a conclusion is actually supposed to do 🔗

Many writers think a conclusion is just a summary. It’s not – or at least, it shouldn’t be only that. According to the UNC Writing Center, your conclusion is your chance to have the final say on the subject: to synthesize your thoughts, demonstrate the importance of your ideas, and leave the reader with something meaningful. It answers the question your body paragraphs raise but don’t explicitly ask – so what? Why does any of this matter?

Think of it this way: your introduction brought the reader into your argument, and your conclusion brings them back out – but with a new perspective. It should feel complete, not cut off. It should feel earned, not tacked on.

Summarizing key points without just repeating yourself 🔗

One of the core jobs of a conclusion is to reinforce your main ideas. But there’s a critical difference between summarizing and repeating. Repeating means copying sentences from your body paragraphs. Summarizing means pulling those ideas together in fresh language that shows the reader how everything connects.

As Harvard’s Writing Center explains, a conclusion doesn’t need to be an exhaustive recap. Even in a longer paper, a few well-chosen sentences can remind the reader where you started and how far the argument has traveled. The goal is synthesis – showing that your individual points add up to something larger than the sum of their parts.

Restate your thesis in new language 🔗

Your thesis should reappear in the conclusion, but it should never be copy-pasted from the introduction. Grammarly puts it clearly: strong conclusions restate the main claim in fresh language, reminding readers of the central argument without repeating earlier wording word for word. This slight shift in phrasing signals that you’ve developed your argument, not just circled back to the start.

For example, if your introduction said: “This essay argues that social media harms adolescent mental health,” your conclusion might say: “The evidence examined here makes clear that unchecked social media use poses real psychological risks to young people.” Same idea, new framing – one that reflects everything you’ve argued in between.

Don’t introduce new information 🔗

This is one of the most common mistakes writers make. New evidence, new examples, or new sub-arguments have no place in a conclusion. If an idea is important enough to appear there, it should have been developed in the body of the composition. Purdue OWL is direct on this: don’t try to bring in new points in the final paragraph. Simplicity and focus are what make a conclusion convincing.

Providing closure: how to end with purpose 🔗

Closure doesn’t just mean stopping. It means making the reader feel that the composition has reached a natural and satisfying end. There are several effective ways to do this, and the right approach depends on the type of composition you’ve written.

End with a reflection 🔗

A reflective conclusion steps back from the specific argument and considers its broader meaning. This works especially well in personal essays or analytical writing where the goal is insight rather than persuasion. You’re essentially asking: given everything I’ve argued, what does this mean in a larger context? Harvard’s Writing Center describes this as the “now what” of a conclusion – helping readers understand or see things in a new way that wasn’t possible before they read your piece.

Point toward a solution or call to action 🔗

For persuasive or problem-focused compositions, the conclusion is a natural place to gesture toward solutions or next steps. Trent University’s Academic Skills guidance notes that if your essay has identified a problem or set of problems, the concluding paragraph is an appropriate place to suggest what might be done – even without fully resolving it. Complex problems rarely get solved in a single essay, but pointing the reader toward a path forward shows that your argument has practical stakes.

Offer a future outlook 🔗

Some compositions end most powerfully by looking ahead. Rather than wrapping everything up neatly, you leave the reader with a forward-looking statement – what happens next, what questions remain, or what’s at stake if the argument is ignored. This is particularly effective in academic and research-based writing. Purdue OWL suggests this as a legitimate conclusion strategy: overview future possibilities or call for further research in a way that gives the reader something to think about beyond the page.

The “bookend” technique 🔗

Another powerful tool is returning to an image, anecdote, or idea you introduced at the very beginning. Trent University calls this “book-ending” – pairing your opening and closing with a shared reference point. When done well, it creates a sense of structural completeness. The reader feels the composition has come full circle, which is one of the most satisfying ways to provide closure.

Avoiding weak phrases that undermine your ending 🔗

Certain phrases have become so overused that they actively weaken a conclusion. The most common offender is “in conclusion.” The UNC Writing Center explicitly flags this as a phrase that comes across as wooden and trite in writing. If your composition has been well-structured, you don’t need to announce that you’re concluding – it should be obvious from the shift in tone and content.

Other phrases to cut 🔗

Similar weak openers include “in summary,” “to conclude,” “as I have shown,” and “it is clear that.” These phrases are filler. They take up space without adding meaning, and they often signal to the reader that what follows will be a dull restatement of what they’ve already read. Trent University specifically warns against opening a conclusion with a line like “in conclusion I have proved that…” – the reader’s instinctive response, they note, is skepticism rather than agreement.

Instead of announcing your conclusion, just conclude. Start with a sentence that picks up meaningfully from your last body paragraph and carries the reader forward into synthesis and closure. The transition should feel natural, not signposted.

Avoid apologetic or tentative language 🔗

Phrases like “I think,” “it seems,” or “perhaps” used excessively in a conclusion can make your entire argument feel uncertain. By the time you reach the conclusion, you should be writing with confidence. You’ve made your case – the conclusion is where you own it. Trent University also advises against apologizing for your opinions in a conclusion, which erodes the credibility you’ve built throughout the composition.

What a strong conclusion looks like in practice 🔗

Take a composition arguing that public libraries are essential to democratic society. A weak conclusion might read: “In conclusion, I have shown that libraries are important and should be funded.” This restates the obvious, uses a banned phrase, and adds nothing new.

A stronger version might read: “Libraries are not just buildings full of books – they are one of the few remaining public spaces where access to knowledge is free, equal, and unconditional. As digital inequality widens and community spaces disappear, their role becomes not less important, but more urgent. Defunding them is not a budget decision; it is a statement about who deserves to be informed.”

This version synthesizes the argument, connects it to a broader context, uses no weak filler phrases, and ends on a note that gives the reader something to carry with them. It doesn’t introduce new evidence – it reframes what’s already been argued in a way that lands with weight.

A quick checklist before you finalize your conclusion 🔗

Before you call your composition done, run through these checks. Does your conclusion restate the thesis in new language? Does it synthesize rather than just list your main points? Does it offer closure – through reflection, a forward-looking statement, or a return to an opening idea? Have you cut any filler phrases like “in conclusion” or “to summarize”? Does it avoid introducing new arguments or evidence? If you can say yes to all of these, your ending is doing its job.

What do you think? When you read a composition that ends powerfully, what is it that makes the ending feel complete – is it the language, the ideas, or something else entirely? And if the conclusion is the last impression a writer leaves, how much more attention should it receive compared to the rest of the piece?

References

1. https://writingcenter.unc.edu/tips-and-tools/conclusions/
2. https://writingcenter.fas.harvard.edu/conclusions
3. https://www.grammarly.com/blog/writing-tips/how-to-write-a-conclusion/
4. https://owl.purdue.edu/owl/general_writing/common_writing_assignments/argument_papers/conclusions.html
5. https://www.trentu.ca/academicskills/how-guides/how-write-university/writing-introductions-conclusions-and-body-paragraphs/writing-0