mother-in-law

noun
moth·er-in-law | \ˈmə-t͟hər-ən-ˌlȯ, ˈmət͟h-rən-, ˈmə-t͟hərn-\
plural mothers-in-law\ˈmə-t͟hər-zən- \

Definition of mother-in-law 

1 : the mother of one's spouse

2 archaic : stepmother

First Known Use of mother-in-law

14th century, in the meaning defined at sense 1

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mother-in-law apartment

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The first known use of mother-in-law was in the 14th century

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mother-in-law

noun

English Language Learners Definition of mother-in-law

: the mother of your husband or wife

mother-in-law

noun
moth·er-in-law | \ˈmə-t͟hər-ən-ˌlȯ\
plural mothers-in-law

Kids Definition of mother-in-law

: the mother of someone's husband or wife

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