Take ownership, translated

"Take ownership" means accepting personal responsibility for a task, idea, or problem. Collins Dictionary defines the phrase as taking personal responsibility for something. Cambridge Dictionary gives the workplace sense directly: taking responsibility for an idea or problem.

In a meeting, "Can someone take ownership of the launch?" sounds decisive while leaving the actual assignment floating above the table. The phrase becomes useful when the sentence names the person, the work, the result, and the date.

Try: Jordan will own the pricing-page test, report conversion, and post the result by Friday. The committee can keep its calendar invite.

Sources: 1 and 2.