simultaneously
adverb
[ ˌsɪmlˈteɪnɪəsli ]
• at the same time.
• "the telethon was broadcast simultaneously on 31 US networks"
Similar:
at the same time,
at one and the same time,
at the same instant/moment,
at once,
concurrently,
concomitantly,
together,
all together,
in unison,
in concert,
in chorus,
as a group,
synchronously,