What does "at the same time" mean?

despite anything to the contrary (usually preceding a concession)

What is a synonym for "at the same time"?

Common synonyms include: above, ad interim, additionally, after all, again, albeit.

prep_phrase

prep_phrase ·Moderate ·College level

Adverb

Prep_phrase

1
At the same instant.
"Their departures were at the same time."
2
Overlapping or coinciding in duration.
"I'm working. But at the same time, I'm exercising too."
3
On the other hand (introducing an opposing viewpoint).

"Their departures were at the same time."