What does 周年 mean?
周年 is a Japanese noun meaning “whole year; entire year” in English. It can also be translated as “n-th year anniversary” depending on context. It is written as 周年 in kanji, しゅうねん in hiragana, and shuunen in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
今年タイ航空は50周年記念を祝います。
Thai Air celebrates its 50th anniversary this year.