overuse [overused, overusing, overuses](To use too much of) verb [UK: ˌəʊv.ə.ˈjuːz] [US: ˌoʊv.ə.ˈjuːz]
squander [squandered, squandering, squanders](to waste) verb [UK: ˈskwɒn.də(r)] [US: ˈskwɑːn.dər]He has squandered every opportunity I've given him. = Él ha desperdiciado todas las oportunidades que le he dado.
waste [wasted, wasting, wastes](to squander) verb [UK: weɪst] [US: ˈweɪst]Don't waste my time. = No desperdicies mi tiempo.