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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

Big banks such as Chase, Bank of America BAC 1.15%increase; green up pointing triangle , Wells Fargo and Citigroup C 2.69%increase; green up pointing triangle have millions of customers they can sell mortgages to.

From The Wall Street Journal • Feb. 18, 2026

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

The BBC went to the registered office of BAC Consulting, situated in a residential area of the Hungarian capital, Budapest.

From BBC • Sep. 20, 2024

BAC helped push Senator Joe McCarthy over the brink in 1954, by supplying a bit of backbone to the Eisenhower Administration at the right time.

From The Invisible Government by Smoot, Dan

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