What does “call to action” mean in English?

A call to action is a message that tells people to do something — and to do it now. A speech can end with one. A social media post can be one. It is not just asking; it is pushing people toward a clear next step. You will find it in health, politics, business, and everyday talk. In marketing it is often shortened to “CTA.”

In this clip, a doctor says she wants to share her vaccine experience because it “could serve as a call to action for others to get the shot.” She is not just posting for herself — she wants her post to make people act. That is the key idea: a call to action is not just information. It is a push to do something. You can use it for big things (“The speech was a call to action on climate change”) or small ones (“The sign is a call to action to wash your hands”). The plural is “calls to action,” and “CTA” is the short form you will see a lot in digital and marketing writing.