1. (n.) The act of performing; the carrying into execution or action; execution; achievement; accomplishment; representation by action; as, the performance of an undertaking of a duty.

2. (n.) That which is performed or accomplished; a thing done or carried through; an achievement; a deed; an act; a feat; esp., an action of an elaborate or public character.

Philharmonic concert accomplished fact accomplishment accordance achievement acquittal acquittance act acta acting action adherence administration adventure agency aping appearance attainment baccalaureate service band concert behavior benefit bill blow bringing to fruition buffoonery business cantando care carrying out celebration ceremonial ceremony chamber concert characterization commencement commission completion compliance concert conduct conformance conformity consummation convocation coup dealings debut deed demeanor demilegato demonstration deportment direction discharge dispatch display doing doings driving dumb show effectiveness effectuation efficacy effort embodiment empty formality enacting enactment endeavor engagement enterprise entertainment execution exercise exercises exhibit exhibition exploit exposition exposure expression fait accompli farewell performance feat fingering flesh show formal formality fruition fulfillment function functioning gag gest gig glissando go graduation graduation exercises ham hammy acting hand handiwork handling heed heeding hoke hokum imitation impersonation implementation inaugural inauguration incarnation initiation interpretation intonation job keeping legato liturgy management maneuver manipulation masquerade measure mezzo staccato mimesis mimicking mimicry miming mission accomplished move mummery music-making musical performance musical program observance observation occupation office opening operancy operation ostentation overacting overproduction overt act pantomime pantomiming parlando passage patter performing perpetration personation personification philharmonic pianism pizzicato play playacting playing pop concert pops popular concert portrayal posing practice premiere presentation presentment proceeding production productiveness program program of music projection prom promenade concert realization recital religious ceremony rendering rendition repercussion representation res gestae respect responsibility retrospective rite rite de passage rite of passage ritual rubato running satisfaction scene service service of music show showing slapstick slur solemnity solemnization spiccato staccato stage business stage directions stage presence stage presentation steering step stroke stunt success swan song symphony concert taking a role theatrical performance thing thing done touch tour de force transaction tryout turn undertaking unfolding unfoldment unveiling varnishing day vernissage work working workings works