A suffix occurring in many abstract (and concrete) nouns of Latin origin.
The Century Dictionary (Public Domain)
Use "tion" in a sentence
"Amazon deforestation is (or should still be) avery politicaltopic."
"While personal information is often thought of as only the documents, emails, and other pieces of information that people receive or retain for some potential, immediate, or future need, William Jones, in his Keeping Found Things Found: The Study and Practice of Personal Information Management (Morgan Kaufmann, 2008), expands the field to include information about “me” or owned by “me.”"
"Suggesting that adapatation deserves asimilar scale of effort as mitigation is akind of climate leadership Isuppose."