throw, cast, toss, fling, hurl, pitch, sling mean to cause to move swiftly through space by a propulsive movement or a propelling force.

throw is general and interchangeable with the other terms but may specifically imply a distinctive motion with bent arm.

cast usually implies lightness in the thing thrown and sometimes a scattering.

toss suggests a light or careless or aimless throwing and may imply an upward motion.

fling stresses a violent throwing.

hurl implies power as in throwing a massive weight.

pitch suggests throwing carefully at a target.

sling stresses either the use of whirling momentum in throwing or directness of aim.