The word "father-in-law" is a appellation noun, which will be used in many situations, such as the wife's address to her husband's father. And grandpa, grandpa, can generally use this name. For example, for older people, the younger generation is usually called the old man. There are also common land lords and sun lords among mythical figures.
Mother-in-law is a title, which is usually used to address elderly women, including her husband's mother, grandmother (grandmother), grandmother (grandmother) and great-grandmother.
Husband's mother can also be called mother directly, and Guangdong is called "grandma". And because the husband's father is called father-in-law, both of them are called in-laws. The two words in English are "grandfather, mother-in-law". Literally, "in-laws (including in-laws)" are our parents in the legal sense. It stands to reason that your spouse's parents became parents because of legal marriage.
Extended data:
Mother-in-law's local title:
In some areas of our country, this is also a name for elderly women, showing respect:
In most areas of Jiangsu, Jiangxi, Sichuan and Shaanxi Guanzhong, children are called grandma (father's mother) or grandma (mother's mother), or "grandma" or "grandma".
Children in northeastern Sichuan and other parts of Sichuan, most parts of Jiangxi and some parts of Hubei are also called grandmothers (fathers' mothers) and "mothers-in-law".
Chongqing dialect generally calls her husband's mother "bitch mother" and her husband "mother" at home.
In some dialects, there are adjectives. For example, there is "your mother-in-law" in Xiangfan dialect in Hubei Province, which refers to a person's mother-in-law. For example, in some places in Hunan, mother-in-law refers to "wife", such as Yueyang dialect and Changsha dialect, which are generally called mother-in-law.
In northern Jiangxi, great-grandmother (father's grandmother) is called "mother-in-law" or "great-grandmother".
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