all at once all together as one as one man at a blow at a clip at a stroke at once at one blow at one jump at one stroke at one swoop at one time at that time coincidentally coinstantaneously concurrently contemporaneously forthwith in a chorus in a hurry in chorus in concert with in phase in sync in unison isochronously now on that occasion on the beat per saltum pronto right away right now right off straightaway straightway subito synchronously then then and there this minute this very minute together uno saltu with one voice without delay