/ ˌdɒkjumenˈteɪʃn; NAmE ˌdɑːk-/ noun [ U ]
1.
the documents that are required for sth, or that give evidence or proof of sth :
I couldn't enter the country because I didn't have all the necessary documentation.
2.
the act of recording sth in a document; the state of being recorded in a document :
the documentation of an agreement