coequal, status, of same rank/status, on an equal footing, on an equal basis, of same class/rank/status, of same class, rank

colleague, co-conspirator, accomplice

synchronize

a pass (authorization through a checkpoint), a laissez-passer or safe conduct, to authenticate, to confirm name and password on a website, fig. a condition giving access to benefits (e.g. a diploma as a pass to a career)

all night, throughout the night

alliance