let alone

Idioms  

1. See leave someone alone .

2. Not to mention, as in We have no room for another house guest, let alone an entire family . [c. 1800]

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Example Sentences

If that was the kind of man my father had been, how did my mom end up with him, let alone have a child with him?

From The Wall Street Journal

Plus, I’ll read anything about a crazy woman — let alone two.

From Los Angeles Times

“You have to pay the bills to keep the lights on, let alone having enough cash to communicate with our more than 23 million registered voters,” he added.

From Los Angeles Times

Meanwhile, Rausch is making the most of people’s low expectations of a “Love Island” contestant, let alone one from Alabama who enjoys catching snakes and quietly strolls around in denim overalls, bare-chested.

From Salon

"They can't even do the jobs in five days, let alone four days," she said.

From BBC