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definitions
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DBA

or dba, d.b.a., d/b/a

  1. doing business as.
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Usage note

DBA often precedes the name under which a business operates that is not the legal name of the owner of the business, but a name sometimes called a fictitious name or trade name.

dBa

or dba

  1. decibels above reference noise, adjusted.
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D.B.A.

  1. Doctor of Business Administration.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018