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
After the loss, both his mother-in-law, who is in her late 50s, and brother-in-law moved into the couple’s home.
—
Ashley Vega, PEOPLE, 15 Nov. 2025
Plus, your mother-in-law may want to shove a suitcase under the bed.
—Brandee Gruener, Southern Living, 13 Nov. 2025
Her mother-in-law, Lucinda Witte, theorized that Erika clung to Drew so much because family was especially precious to her.
—Ariane Lange, Sacbee.com, 13 Nov. 2025
The Kelce family matriarch is mother to NFL stars Jason and Travis Kelce – and is slated to be Taylor Swift's future mother-in-law.
—Kimi Robinson, USA Today, 12 Nov. 2025
See All Example Sentences for mother-in-law
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Ashley Vega, PEOPLE, 15 Nov. 2025
Plus, your mother-in-law may want to shove a suitcase under the bed.
—Brandee Gruener, Southern Living, 13 Nov. 2025
Her mother-in-law, Lucinda Witte, theorized that Erika clung to Drew so much because family was especially precious to her.
—Ariane Lange, Sacbee.com, 13 Nov. 2025
The Kelce family matriarch is mother to NFL stars Jason and Travis Kelce – and is slated to be Taylor Swift's future mother-in-law.
—Kimi Robinson, USA Today, 12 Nov. 2025
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 20 Nov. 2025.
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