adjective (used predicatively)
- to allow (someone) to be by himself or herself: Leave him alone—he wants to rest.
- to refrain from annoying or interfering with: The youngsters wouldn't leave the dog alone, and he finally turned on them.
- to refrain from annoying or interfering with.
- not to mention: He was too tired to walk, let alone run.
Examples from the Web for alone
By contrast, John McCain, the eventual GOP nominee, had raised approximately $12.7 million in the first quarter of 2007 alone.
Women and children are disproportionately victims, but they are not alone.ISIS, Boko Haram, and the Growing Role of Human Trafficking in 21st Century Terrorism|Louise I. Shelley|December 26, 2014|DAILY BEAST
It happened and it was a group of maybe 200 in a movement that has drawn tens of thousands in New York alone.
But the Chinese have shown little interest, of late, in corralling its own hackers—let alone those from another country.
The other person for whom a path to the nomination, let alone a candidacy, seems much less likely is Mitt Romney.How A Jeb Bush Candidacy Would Hurt Chris Christie And Shake Up The 2016 GOP Field|David Freedlander|December 16, 2014|DAILY BEAST
The fear of its loss can alone teach us the true value of our treasure.Guy Rivers: A Tale of Georgia|William Gilmore Simms
Meantime, the leader, to whom thousands were looking up, was miserable and alone.The Eternal City|Hall Caine
Alone the thick polled alders remain green, and in their shadow the brook is still darker.Nature Near London|Richard Jefferies
Probably not one of those tribesmen has ever set foot on the American continent, let alone in Chicago.The Cruise of the O Moo|Roy J. Snell
Mrs. Palmer alone was absent from her guests, sitting at the telephone.The Relentless City|Edward Frederic Benson
British Dictionary definitions for alone
adjective, adverb (postpositive)
Word Origin for alone
Word Origin and History for alone
c.1300 contraction of all ane, from Old English all ana "unaccompanied, all by oneself," from all "all, wholly" (see all) + an "one" (see one). Similar compounds are found in German (allein) and Dutch (alleen).
Idioms and Phrases with alone
see go it alone; leave someone alone; leave well enough alone; let alone.