What does 祝う mean?
祝う is a Japanese verb meaning “to congratulate, to celebrate” in English. It can also be translated as “to present (a gift) in celebration, to wish for (a happy future, good fortune, etc.)” depending on context. It is written as 祝う in kanji, いわう in hiragana, and iwau 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.