Investors are the people or companies that spend their money in return for a share in a business.
A napkin sketch is the simple drawing of one single idea, explaining what the idea is about without going into details how it works.
Time To Market: The period taken by a company from inception to the actual launch of a product or service. Also referred to as product time to market.
A tactic is a specific, identifiable element in a business strategy. It helps to break down top-level goals and strategic initiatives into detailed action steps so the strategy can be executed effectively.