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BAC

¹ American

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 ² American

[bak] / bæk /

noun

baccalaureate.

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.

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

And Bank of America BAC 2.72%increase; green up pointing triangle is expected to bring in the biggest-ever disclosed deal fee for a single bank, a cool $130 million.

From The Wall Street Journal • Oct. 14, 2025

The Hungarian government has said BAC had "no manufacturing or operational site" in the country.

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 Huygens, Christiaan

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023