execute

kill, slay, murder, assassinate, dispatch, execute mean to deprive of life. kill merely states the fact of death caused by an agency in any manner <killed in an accident> <frost killed the plants>. slay is a chiefly literary term implying deliberateness and violence but not necessarily motive <slew thousands of the Philistines>. murder specifically implies stealth and motive and premeditation and therefore full moral responsibility <convicted of murdering a rival>. assassinate applies to deliberate killing openly or secretly often for political motives <terrorists assassinated the Senator>. dispatch stresses quickness and directness in putting to death <dispatched the sentry with one bullet>. execute stresses putting to death as a legal penalty <executed by lethal gas>.

perform, execute, discharge, accomplish, achieve, effect, fulfill mean to carry out or into effect. perform implies action that follows established patterns or procedures or fulfills agreed-upon requirements and often connotes special skill <performed gymnastics>. execute stresses the carrying out of what exists in plan or in intent <executed the hit-and-run>. discharge implies execution and completion of appointed duties or tasks <discharged his duties>. accomplish stresses the successful completion of a process rather than the means of carrying it out <accomplished everything they set out to do>. achieve adds to accomplish the implication of conquered difficulties <achieve greatness>. effect adds to achieve an emphasis on the inherent force in the agent capable of surmounting obstacles <effected sweeping reforms>. fulfill implies a complete realization of ends or possibilities <fulfilled their ambitions>.