takeaway
n.a main message or piece of information you learn from a meeting, book, or event. It can also mean food you buy from a restaurant to eat somewhere else.
n.a key fact, point, or idea to be remembered, typically derived from a discussion or presentation. In British and Commonwealth English, it also refers to a meal purchased from a restaurant for consumption elsewhere.
“The main takeaway from the meeting is that we need more staff.”
“After the three-day leadership workshop, my biggest takeaway was the importance of active listening in conflict resolution.”
“While the presentation was dense with statistical data, the primary takeaway for the board was the urgent necessity of diversifying our international supply chains.”
Often used with 'from' to indicate the source of the information or lesson.
Deverbal from take away.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.