Emissary	a person sent on a special mission, usually as a diplomatic representative
Mission	an important assignment carried out for political, religious, or commercial purposes, typically involving travel
Invoke	1 cite, refer to, resort to, have recourse to, turn to 2 appeal to, pray to, call on, beg,
Negate	nullify, neutralize, cancel; undo, reverse, annul, void, revoke, rescind, repeal, retract, countermand, overrule, overturn
Cognizant	aware
Annihilate	destroy utterly; obliterate
homicide	murder
Subdue	restrain, hold back, constrain, contain, repress, suppress, stifle
Beneficial	favorable, helpful, useful, of use, of benefit, of assistance, valuable
Gregarious	fond of company, sociable