naught (chiefly US) or chiefly Brit nought 
/ˈnɑ:t/ pronoun
/ˈnɑ:t/ pronoun old-fashioned : 1nothing
▪ All our efforts came to naught. = (US) All our efforts went for naught. [=we did not succeed in doing what we were trying to do] ▪ (chiefly US) It was all for naught. [=it was all for nothing]
▪ All our efforts came to naught. = (US) All our efforts went for naught. [=we did not succeed in doing what we were trying to do] ▪ (chiefly US) It was all for naught. [=it was all for nothing]
