be across (something)

be across (something)

To accurately grasp or comprehend something, often something complex. Primarily heard in Australia. Thank you for explaining that again—I think I'm finally across it now.
See also: across
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

be across something

fully understand the details or complexity of an issue or situation. Australian
See also: across, something
Farlex Partner Idioms Dictionary © Farlex 2017
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