mother-in-law (n)

My mother-in-law is like a mother to me as well as my husband.
Building a positive relationship with one's mother-in-law requires understanding and respect.
The newlyweds visited their mother-in-law to share exciting news about their life together.
The mother-in-law offered guidance and support during challenging times.
Mutual appreciation and open communication contribute to a harmonious relationship with a mother-in-law.