double bass
US /ˌdʌb.əl ˈbeɪs/
UK /ˌdʌb.əl ˈbeɪs/

1.
kontrabas
the largest and lowest-pitched bowed string instrument in the modern symphony orchestra, with four or five strings and a range of about three and a half octaves
:
•
She plays the double bass in the school orchestra.
Ona gra na kontrabasie w orkiestrze szkolnej.
•
The deep resonance of the double bass filled the concert hall.
Głęboki rezonans kontrabasu wypełnił salę koncertową.