Word

婿

聟、壻
むこ
husband; groom; (one's) son-in-law
Word

相婿

相聟
あいむこ
brother-in-law
Word

入り婿

入婿、入聟、入壻
いりむこ
man who takes his wife's family name and marries into her family; man who is adopted by his wife's family