Viewing cherry blossoms

桜前線　：the beginning of the wave of cherry blossoms
開花する：bloom
花見シーズン：cherry blossom season
つぼみ　：bud
３分（５分）咲き：one third(half) of the flowers on the tree are in bloom
満開　　：full bloom　しだれ桜：weeping cherry blossom tree
花見客　：cherry blossom viewing　花見酒　：drinking sake under the cherry blossoms
花見団子：eating sticky rice balls on a stick under the cherry blossoms
桜吹雪　：a storm of cherry blossom / a storm of flowers
夜桜　　：night time cherry blossom viewing
場所取り：reserve a spot
花見の名所　　：cherry blossom viewing spots
どんちゃん騒ぎ：party/bacchanalia
酔っぱらい　　：a drunk
go cherry blossom viewing with～（～と花見に行く）
The cherry blossoms are in full bloom.（桜が満開だ）