Outcome and Takeaway

Outcome noun - A condition or occurrence traceable to a cause.

Takeaway and outcome are semantically related In some cases you can replace term "Takeaway" with "Outcome", this nouns are similar.

Takeaway noun - A concession made by a labor union to a company that is trying to lower its expenditures.

Outcome and takeaway are semantically related in conclusion topic. You can use "Outcome" instead a noun "Takeaway".