one in a million

== English == === Noun === one in a million Something extremely rare or unlikely. ==== Synonyms ==== hen's tooth, long shot; see also Thesaurus:rarity ==== Translations ==== ==== Further reading ==== “be one in a million”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present. “one in a million”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present. “one in a million”, in Merriam-Webster.com Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present. “one in a million”, in Collins English Dictionary, 2011–present.