How can I alter the 'Shipping' text at checkout?

The checkout page has the heading “Shipping” when listing my delivery or pickup options. How can I change this to say something else?

online store> … > theme default content> search> Shipping

I have already tried this, changing as many 'Shipping" as i can find but no luck. If you can find the specific one that needs changing I can try search that instead.

Turned out to be a custom translation file that was stopping the store default content from being used. The translation files were likely added by an third-party app. Once remove the default theme content was able to be used.