Arguably means that something can be reasonably argued or debated, even if not everyone agrees. When you say a statement is arguably true, you're acknowledging that while you believe it and can support it with good reasons, other people might see things differently.

If someone claims that Michael Jordan is arguably the greatest basketball player of all time, they're saying there's a strong case for this view, but they recognize that reasonable people might argue for LeBron James, Kareem Abdul-Jabbar, or others instead. The word signals confidence in your position while showing you understand it's debatable.

Students often use arguably when writing persuasive essays or making claims about subjective topics like which book in a series is best or which historical figure had the most impact. It presents your view as supportable and defensible rather than claiming absolute certainty about something that's genuinely open to interpretation.

When you use it, you show you've thought about other perspectives. It's the difference between saying “Pizza is the best food” (which invites disagreement) and “Pizza is arguably the best food” (which invites conversation).