mother-in-law Mothering sunday • mother-in-law plant · · · Info · Definitions · Characters · · mother-in-law · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) the mother of your spouse. · · Noun Definition 1 Characters · · - hyphen-minus U+002D a latin small letter a U+0061 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 w latin small letter w U+0077