Correct
联姻
/ liányīn /
Strokes
Definition
related by marriage/to connect by marriage (families, work units)
Example
As a Verb
(of two families) form a matrimonial alliance; form an alliance by marriage; be united by marriage
1
Tāmen
他们
liǎng
两
jiā
家
liányīn
联姻
chéng
成
le
了
qìngjia
亲家
。
The two families are united by marriage.
As a Verb
form partnership; cooperate (harmoniously)