Meaning of en gang | Babel Free

Definitions

1. once, one day, at one time
2. sometime, some day, one day
3. even

Examples

“Det angripes ikke av noen syrer, ikke en gang kongevann, men løses opp av flytende salter.”

It is not attacked by any acids, not even aqua regia, but is dissolved by liquid salts. (Wikipedia Iridium)