Merriam-Webster defines serendipity serendipity Merriam-Webster serendipity serendipity serendipity serendipity serendipity http://www.merriam-webster.com/dictionary/serendipity valuable serendipity Serendipity valuable SERENDIPITY serendipity serendipity serendipity “not sought for” serendipity serendipity serendipity serendipity serendipity serendipity Merriam-Webster.com defined serendipity valuable serendipity serendipity