An instrument is a concrete or abstract tool intended for a purpose other than mechanical work, in particular a refined one.
Musical instruments are devices designed to produce music, frequently by plucking or striking a string or bell or drum surface, or by forcing air to resonate (see wind instruments).
... US dollar. This devaluation helped moderate the downturn in economic growth in 1999 that investors had expressed concerns about over the summer of 1998, and the country ...