- t/a
- trading as ( T/A)Designation, usually following a name, indicating that a name used by a business is not the legal name of the entity doing business but is an assumed name or trade name instead. American Banker Glossary
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t/a UK US verb► COMMERCE, LAW WRITTEN ABBREVIATION for trading as: used to show the name used by a business when advertising, dealing with customers, etc. rather than the name recorded for legal purposes: »Andrew Clarke, t/a Clarke's Cakes
Financial and business terms. 2012.