"contrabass" in the noun sense
1. bass fiddle, bass viol, bull fiddle, double bass, contrabass, string bass
largest and lowest member of the violin family
"contrabass" in the adjective sense
1. contrabass, double-bass
pitched an octave below normal bass instrumental or vocal range
"contrabass or double-bass clarinet"
Source: WordNet® (An amazing lexical database of English)
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