THESAURUS
simultaneously
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
ROGET THESAURUS
simultaneously
Synchronism
N
synchronism, coexistence, coincidence, simultaneousness, simultaneity, concurrence, concomitance, unity of time, interim, isochronism, contemporary, coetanian, synchronous, synchronal, synchronic, synchronical, synchronistical, simultaneous, coexisting, coincident, concomitant, concurrent, coeval, coevous, contemporary, contemporaneous, coetaneous, coeternal, isochronous, at the same time,
simultaneously, together, in concert, during the same time, in the same breath, pari passu, in the interim, as one, at the very moment, just as, as soon as, meanwhile.