mother-in-law
noun
moth·er-in-law
ˈmə-t͟hər-ən-ˌlȯ 
ˈmət͟h-rən-,
ˈmə-t͟hərn-
plural mothers-in-law
ˈmə-t͟hər-zən-ˌlȯ
1
: the mother of one's spouse
2
archaic
: stepmother
Examples of mother-in-law in a Sentence
Recent Examples on the Web
His mother-in-law is battling Alzheimer's disease.
—
Alysia Burgio,
CBS News,
21 June 2026
The princess once again honored her late mother-in-law, Princess Diana, wearing her three-strand pearl bracelet for the event.
—
Jennifer Hassan,
USA Today,
17 June 2026
Like, my mother-in-law is Cuban.
—
David Frum,
The Atlantic,
17 June 2026
Sitting with her children in a carriage during the parade and later appearing on the balcony of Buckingham Palace, the princess wore nodded to her late mother-in-law Princess Diana's 1987 Easter outfit in a pale blue ensemble and wide-brimmed hat by Catherine Walker.
—
Meg Walters,
InStyle,
15 June 2026
See All Example Sentences for mother-in-law
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Alysia Burgio,
CBS News,
21 June 2026
The princess once again honored her late mother-in-law, Princess Diana, wearing her three-strand pearl bracelet for the event.
—
Jennifer Hassan,
USA Today,
17 June 2026
Like, my mother-in-law is Cuban.
—
David Frum,
The Atlantic,
17 June 2026
Sitting with her children in a carriage during the parade and later appearing on the balcony of Buckingham Palace, the princess wore nodded to her late mother-in-law Princess Diana's 1987 Easter outfit in a pale blue ensemble and wide-brimmed hat by Catherine Walker.
—
Meg Walters,
InStyle,
15 June 2026
See All Example Sentences for mother-in-law
Cite this Entry
“Mother-in-law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mother-in-law. Accessed 28 Jun. 2026.
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