deliver a sharp blow, as with the hand, fist, or weapon
hit against; come into sudden contact with
have an emotional or cognitive impact upon
a group's refusal to work in protest against low pay or bad work conditions
a straight line connecting two points on a curve
a combination of three or more notes that blend harmoniously when sounded together
a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
