A woman becoming a bride and joining her husband's household; marriage/wedding (often used for the bride entering her husband's family).
母は私が嫁入りする時にお雛様を持たせてくれた。
When I got married, my mother gave me the hina dolls as something to take with me.
古い村では嫁入りの習慣が今も残っている。
In some old villages, traditional marriage/bridal customs still remain.
来月、妹が嫁入りするので忙しい。
My younger sister is getting married next month, so I'm busy.