• Co-uncle

    Origin

    Full definition of co-uncle

    Noun

    co-uncle

    (plural co-uncles)
    1. of a man, an uncle of one's niece or nephew who is not one's brother; a co-brother-in-law as common uncle to the children of two men's married siblings.
    2. a man's brother, as uncle in common to the children of a third siblingMy nephew came up for the summer with my brother and co-uncle George.

    Synonyms

    • co-brother-in-law (relative to the married siblings rather than to the children; however, this term generally refers to a different relationship, that of two men who marry sisters)

    Coordinate terms

    Related terms

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