one thousand million(n = noun.quantity) 1000000000, billion - the number that is represented as a one followed by 9 zeros;
is a kind of large integer
has particulars: milliard

a million times, as one, at one, at one time, beneath one, beyond one, fast one, feel like a million, feel like a million dollars, for each one, for one, for one thing, from each one, go one better, hundred and one, hundred thousand, in one case, in one ear, loved one, million, million floating point operations per second, million instructions per second, naked as the day one was born, number one, number one wood, on one hand, on the one hand, one, one after another, one and all, one and only, one at a time, one by one, one c, one dollar bill, one horse, one hundred, one hundred eighty, one hundred fifteen, one hundred fifty, one hundred fifty-five, one hundred five, one hundred forty, one hundred forty-five, one hundred ninety, one hundred one, one hundred seventy, one hundred seventy-five, one hundred sixty, one hundred sixty-five, one hundred ten, one hundred thirty, one hundred thirty-five, one hundred twenty, one hundred twenty-five, one iron, one million million, one million million million, one of the boys, one of these days, one one's coattails, one percent, one piece, one shot, one sided, one thousand, one thousand thousand, one time, one upmanship, pull a fast one, pull a fast one on, put one across, put one over, rolled into one, six of one and half a dozen of, square one, ten thousand, thousand, thousand and one nights, thousand island dressing, thousand legs, thousand times, to each one, to one ear, young one