Contra meaning : A deal to swap goods or services. A conservative; originally tied to Nicaraguan counter-revolutionaries. An entry (or account) that cancels another entry (or account). Any of the musical instruments in the contrabass range, e.g. contrabassoon, contrabass clarinet or, especially, double bass. A contra dance. A country dance. To undo; to reverse. Contrary to something Against; contrary or opposed to; in opposition or contrast to