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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

Etienne, 36 years old, works for Bank of America BAC -0.24%decrease; red down pointing triangle in London.

From The Wall Street Journal • Dec. 26, 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 BBC has not been able to independently verify these reports - but we do know that Bulgarian authorities have now begun investigating another company linked to BAC.

From BBC • Sep. 20, 2024

The BAC didn't pay much–if any–attention to Joe McCarthy as a social menace until he started to pick on Bob Stevens.

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