Refers collectively to wind and string instruments, often in an orchestral context. Not a single instrument but a category.
I went to listen to a performance of wind and string instruments.
This piece was written for wind and string instruments.
Refers only to wind instruments, excluding strings.
Refers only to string instruments, excluding winds.
An orchestra, which typically includes both wind and string instruments, but also percussion and other sections.
Compound of 管 (wind instrument), 弦 (string instrument), and 楽器 (musical instrument).