1(Of a woman) to marry and enter her husband's household; to become a bride; to marry into a family. Somewhat formal or literary; everyday speech uses 結婚する.
姉は去年、幼なじみのもとに嫁いだ。
My older sister married her childhood friend last year.
娘が遠い町へ嫁ぐことになり、母は少し寂しそうだった。
Their daughter was to marry into a family in a distant town, and the mother looked a little lonely.
彼女は名家に嫁いで、慣れない暮らしに苦労したそうだ。
She married into a distinguished family and apparently struggled with the unfamiliar way of life.
昔は十代で嫁ぐ女性も珍しくなかった。
In the past, it was not uncommon for women to marry in their teens.
2(Archaic) to have sexual intercourse. An old usage found in classical literature; not used with this meaning in modern Japanese.