The term "in-law" refers to a family member through marriage. However, different regions have their own unique terms for in-laws. In parts of the United States, the term "co-sibling-in-law" refers to a spouse's sibling's spouse. In England, the term "brother/sister-in-love" is used instead of in-law. In India, the term "sambandhi" is used to refer to a relative through marriage. Similarly, in Malaysia, the term "menantu" is used to refer to in-laws. In Japan, the term "muko" and "yome" refers to brother-in-law and sister-in-law, respectively. Despite cultural differences, all these terms serve the same purpose, which is to acknowledge and identify a family member through marriage.