simultaneous
US /ˌsaɪ.məlˈteɪ.ni.əs/
UK /ˌsaɪ.məlˈteɪ.ni.əs/

1.
serentak, bersamaan
occurring, operating, or existing at the same time
:
•
The two events were simultaneous.
Kedua-dua peristiwa itu serentak.
•
They made simultaneous announcements.
Mereka membuat pengumuman serentak.