father-in-law B2 Topic:Family & Relationships US /ˈfɑːðəɹɪnˌlɔː/ See IPA manual Freq #7743 Meanings 1 noun The father of your husband or wife. My father-in-law invited us over for dinner on Sunday. Thesaurus Word family Forms father-in-lawsfathers-in-law Derived forms co-father-in-lawstepfather-in-law Related forms brother-in-lawdaughter-in-lawmother-in-lawsister-in-lawson-in-law Etymology AI details From Middle English fader in lawe, fadyr-in-lay, fader yn lawe, equivalent to father + -in-law. fader in lawe Middle English View etymology graph -> Topics Family & Relationships Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # father-in-law **Type:** Word **Level:** B2 **Part of speech:** noun **IPA (US):** /ˈfɑːðəɹɪnˌlɔː/ **Frequency rank:** 7743 ## Meanings 1. The father of your husband or wife. ## Examples - My father-in-law invited us over for dinner on Sunday. ## Derived Forms - co-father-in-law - stepfather-in-law ## Related Forms - brother-in-law - daughter-in-law - mother-in-law - sister-in-law - son-in-law ## Roots and Affixes - Root: fader in lawe ## Etymology From Middle English fader in lawe, fadyr-in-lay, fader yn lawe, equivalent to father + -in-law. ## AI Etymology Father-in-law comes from Middle English fader in lawe, fadyr-in-lay, fader yn lawe, equivalent to father + -in-law. In current use, the main sense is “The father of your husband or wife”. ## Topics - Family & Relationships - Word Formation & Derivatives markdown