A word like 'siblings' for nephews and nieces collectively.
I made this word up out of necessity several years ago and have since used it often. People seem to pick up on it and understand easily what I am referring to.
I have to babysit my ninklets this afternoon.
askoxford.com has question showing the need for this word... stating it would in fact be useful if there were such a word. now there is!
www.askoxford.com /asktheexperts /faq /aboutwords /siblings?view=uk