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DBA

¹ American

Or dba,

abbreviation

doing business as: DBA often precedes the name under which a business operates that is not the legal name of the business. Individuals who have not incorporated can also use such a name to carry out business activities. Many states and counties require the registration of the name.

noun

assumed business name,. fictitious name. a name other than a company's legal name that is used to carry out business activities.

She ran her home business using the DBA “Betty's Bargains.”

dBa ² American

Or dba

decibels above reference noise, adjusted.

D.B.A. ³ American

abbreviation

Doctor of Business Administration.

Etymology

Origin of DBA

First recorded in 1920–25

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.

Newton said DBA has just surpassed a key technical resistance level, after breaking out of a trendline in early February.

From MarketWatch • Mar. 6, 2026

Creators coalesced from the acquisition of DBA and its merger with UTA’s digital, audio and gaming divisions.

From The Wall Street Journal • Mar. 4, 2026

The current DBA is the most flexible and creative attempt yet by a state to recognize and protect various relationships.

From Slate • Jun. 27, 2023

Singer John Boutte’s usual gig at the DBA bar is gone for now — as are the performances he had planned in Denmark, Switzerland and Scotland.

From Seattle Times • Jul. 14, 2020

This knowledge and understanding exceed the expectations of dominant battlefield awareness and DBA becomes a subset of Rapid Dominance.

From Shock and Awe — Achieving Rapid Dominance by Wade, James P.

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