祝う
1
to celebrate;to congratulate;to observe (a festival)
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.
2
to present (a gift) in celebration;to drink in celebration
3
to wish for (a happy future, good fortune, etc.);to pray for
Other forms
斎う 【いわう】