do exterminate (verb) slaughter: kill
Sinonime: at intervals, at times, discontinuously, every now and then, every once in a while, every so often, from time to time, hardly, infrequently, intermittently, irregularly, now and again, now and then, occasionally, off and on, on occasion, once in a blue moon, once in a while, periodically, sometimes, sporadically
Antonime: bear,
create, give birth