DBA

¹ American  

Or dba,

abbreviation

1. 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

1.  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

1. decibels above reference noise, adjusted.

---

D.B.A. ³ American  

abbreviation

1. Doctor of Business Administration.

---

Etymology

Origin of DBA

First recorded in 1920–25

Example Sentences

He expects the DBA will test last year’s $28.49 highs, and $32 above that, which he sees likely in 2026.

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 group moved from Los Feliz to the larger DBA nightclub in West Hollywood, where Demi Moore’s daughter, Rumer Willis, joined the cast.

From Los Angeles Times • Mar. 4, 2025

But because the law said nothing about other possible legal arrangement, Steadman and others hammered out a bold new creation: the DBA.

From Slate • Jun. 27, 2023

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.