Wikimedia general text:
Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. See Terms of Use for details.
Wikidata text:
All structured data from the main, property and lexeme namespaces is available under the Creative Commons CC0 Licence; text in the other namespaces is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy.
Commons text to use:
Files are available under licenses specified on their description page. All structured data from the file and property namespaces is available under the Creative Commons CC0 Licence; all unstructured text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy.