Actually is a word people use to correct a misunderstanding, add surprising information, or emphasize what's really true. When your friend says “That test was impossible,” you might reply, “Actually, I thought it was pretty fair,” to politely show you have a different view. When someone assumes you're in sixth grade and you say “I'm actually in fifth grade,” you're setting the record straight.

A detective might say, “We thought the window was broken from outside, but actually it was broken from inside,” revealing the true situation.

People sometimes feel that actually can sound know-it-all if it is overused. Saying “Actually, that's wrong” constantly can make conversations feel like competitions instead of friendly exchanges. Sometimes it's helpful to share information without the correction implied by actually: “I think it works this way” sounds more collaborative than “Actually, it works this way.”

The word can also express surprise or emphasis about something unexpected. “I actually finished all my homework before dinner!” shows you're surprised by your own accomplishment. “Did you actually see a shooting star?” emphasizes genuine curiosity about whether something remarkable really happened.