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  • BAC
    BAC
    abbreviation
    blood alcohol content; blood-alcohol concentration: the percentage of alcohol in the bloodstream: under the laws of most U.S. states, a BAC of 0.08 or higher is the legal definition of intoxication.
  • bac
    bac
    noun

BAC

1 American  

abbreviation

  1. blood alcohol content; blood-alcohol concentration: the percentage of alcohol in the bloodstream: under the laws of most U.S. states, a BAC of 0.08 or higher is the legal definition of intoxication.


bac 2 American  
[bak] / bæk /

Etymology

Origin of BAC

First recorded in 1960–65


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The daily chart has shown some absolute strength against peers, with BAC acting well on the ratio chart over the past year.

From Barron's ● Mar. 11, 2026

Bank of America BAC 2.52%increase; green up pointing triangle reported third-quarter earnings and revenue that bested analysts’ expectations, thanks to healthy consumer activity and a busy summer in its investment banking division.

From The Wall Street Journal ● Oct. 15, 2025

Bank of America BAC 0.31%increase; green up pointing triangle , which advised Norfolk Southern on its sale, is set to earn an estimated $130 million fee for its work, if all goes according to plan.

From The Wall Street Journal ● Sep. 20, 2025

But based on initial conversations, it said it did not have any involvement with BAC.

From BBC ● Sep. 20, 2024

For, considering AB as the radius of a circle, the Sine of the angle BAC is BC, and the Sine of the angle ABN is AN.

From Treatise on Light by Christiaan Huygens

Cold bulk fermentation, also called pointage en bac in French, is a technique where the dough — all in one large mass — is placed into the refrigerator for some number of hours before dividing.

From Salon ● Jul. 7, 2021

Some take the bac 2-3 times without succeeding.

From US News ● Sep. 22, 2016

"It's over I'm bac on my cool ... no harm no foul," he wrote in the caption, adding "much love @troubleman31t respect sorry bout that"

From Los Angeles Times ● Oct. 16, 2014

Ironically, Hugo himself sharply criticised the bac and academia in general in a 1864 essay from his book William Shakespeare.

From BBC ● Jun. 19, 2014

It consists of monosyllables in which the final and redundant k is not written,—“Dic gave Jac a kic when Jac gave Dic a knoc on the bac with a thic stic.”

From Amenities of Literature Consisting of Sketches and Characters of English Literature by Isaac Disraeli

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