abruptly, all together, at a blow, at a stroke, at once, at one blow, at one jump, at one stroke, at one swoop, at one time, bang, collectively, communally, conjointly, corporately, dash, en masse, ensemble, forthwith, hastily, impetuously, impulsively, in a body, in a hurry, in association, in company, in conjunction, jointly, like a flash, like a thunderbolt, mutually, now, of a sudden, on short notice, per saltum, plop, plump, plunk, pop, precipitantly, precipitately, precipitously, pronto, right away, right now, right off, sharp, simultaneously, slap, smack, startlingly, straightaway, straightway, subito, sudden, suddenly, surprisingly, then and there, this minute, this very minute, together, unawares, unexpectedly, unitedly, uno saltu, without delay, without notice, without warning